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Buy from Amazon $26.32$9.99 $22.50 $17.50 $12.50 $7.50 Sep Nov Jan Mar May Jul Sep Nov Jan Mar May 2015 2016 $16.29, Jul 26 - Oct 22$18.30, Oct 24 - Nov 4$18.66, Nov 7 - Nov 11$19.03, Nov 16 - Nov 18$19.40, Nov 20 - Nov 27$19.78, Nov 29 - Dec 5$20.27, Dec 7 - Dec 12$20.36, Dec 14 - Apr 4$23.54, Mar 5 - Mar 9$20.36, Mar 5 - Mar 9$20.36, Dec 14 - Apr 4$20.36, Dec 14 - Apr 4$18.99, Mar 11 3:25 am$18.10, Mar 11 3:25 am$20.36, Dec 14 - Apr 4$17.38, Mar 13 11:06 am$16.36, Mar 13 - Mar 14$24.45, Mar 14 3:22 pm$20.36, Dec 14 - Apr 4$16.36, Mar 13 - Mar 14$24.34, Mar 16 12:23 am$20.36, Dec 14 - Apr 4$20.35, Mar 16 12:23 am$24.77, Mar 17 11:11 am$20.36, Dec 14 - Apr 4$16.36, Mar 17 11:11 am$26.32, Mar 19 6:40 pm$20.36, Dec 14 - Apr 4$16.15, Mar 19 6:40 pm$20.36, Dec 14 - Apr 4$17.37, Mar 20 - Mar 22$15.95, Mar 21 12:06 pm$20.36, Dec 14 - Apr 4$17.26, Mar 23 8:26 am$15.98, Mar 22 - Mar 24$20.36, Dec 14 - Apr 4$17.24, Mar 24 2:09 pm$15.98, Mar 22 - Mar 24$20.36, Dec 14 - Apr 4$17.37, Mar 25 - Apr 1$15.74, Mar 28 4:56 am$20.36, Dec 14 - Apr 4$17.37, Mar 25 - Apr 1$15.59, Mar 29 10:47 am$20.36, Dec 14 - Apr 4$17.37, Mar 25 - Apr 1$15.33, Mar 31 8:52 am$20.36, Dec 14 - Apr 4$15.33, Apr 1 4:47 pm$15.25, Apr 1 4:47 pm$20.36, Dec 14 - Apr 4$15.31, Apr 2 - Apr 5$13.22, Apr 3 - Apr 4$20.56, Apr 5 - Apr 11$15.83, Apr 5 4:47 am$15.31, Apr 2 - Apr 5$20.56, Apr 5 - Apr 11$15.74, Apr 6 2:50 pm$15.14, Apr 6 2:50 pm$20.56, Apr 5 - Apr 11$15.54, Apr 8 1:58 am$14.50, Apr 8 1:58 am$20.56, Apr 5 - Apr 11$15.49, Apr 10 5:28 am$13.97, Apr 10 - Apr 14$20.56, Apr 5 - Apr 11$15.48, Apr 11 - Apr 13$13.97, Apr 10 - Apr 14$20.76, Apr 12 - Apr 17$15.48, Apr 11 - Apr 13$13.97, Apr 10 - Apr 14$20.76, Apr 12 - Apr 17$15.46, Apr 14 - Apr 15$13.91, Apr 14 - Apr 16$20.76, Apr 12 - Apr 17$15.45, Apr 16 7:22 am$13.91, Apr 14 - Apr 16$20.96, Apr 17 - Apr 21$15.13, Apr 18 8:46 am$13.64, Apr 18 8:46 am$20.96, Apr 17 - Apr 21$14.95, Apr 19 6:59 pm$13.41, Apr 19 6:59 pm$20.96, Apr 17 - Apr 21$14.93, Apr 21 4:45 am$13.18, Apr 21 4:45 am$21.16, Apr 21 - Apr 25$14.91, Apr 21 - Apr 22$12.99, Apr 22 3:50 pm$21.16, Apr 21 - Apr 25$14.79, Apr 24 - Apr 25$12.71, Apr 24 - Apr 25$23.74, Apr 26 - May 24$14.50, Apr 26 11:39 am$12.71, Apr 26 - Apr 30$23.74, Apr 26 - May 24$14.51, Apr 28 2:46 am$12.71, Apr 26 - Apr 30$23.74, Apr 26 - May 24$14.55, Apr 28 - Apr 29$12.71, Apr 26 - Apr 30$23.74, Apr 26 - May 24$10.99, May 1 4:39 am$10.39, May 1 4:39 am$23.74, Apr 26 - May 24$16.28, May 2 3:39 pm$13.98, May 2 3:39 pm$23.74, Apr 26 - May 24$16.18, May 4 1:40 am$13.98, May 4 1:40 am$23.74, Apr 26 - May 24$16.38, May 6 5:15 am$13.95, May 6 5:15 am$23.74, Apr 26 - May 24$13.92, May 7 9:18 pm$12.56, May 6 - May 7$23.74, Apr 26 - May 24$13.90, May 8 - May 10$12.52, May 8 - May 11$23.74, Apr 26 - May 24$13.89, May 11 - May 12$12.50, May 12 2:43 pm$23.74, Apr 26 - May 24$13.87, May 14 7:49 am$11.80, May 14 7:49 am$23.74, Apr 26 - May 24$13.86, May 15 5:09 am$11.79, May 15 5:09 am$23.74, Apr 26 - May 24$13.85, May 16 - May 18$11.78, May 16 - May 18$23.74, Apr 26 - May 24$13.84, May 19 5:08 am$11.77, May 19 - May 21$23.74, Apr 26 - May 24$13.83, May 20 7:39 am$11.77, May 19 - May 21$23.74, Apr 26 - May 24$13.82, May 21 12:01 pm$11.77, May 19 - May 21$23.74, Apr 26 - May 24$13.80, May 22 - May 25$12.44, May 22 - May 24$23.50, May 25 - May 31$13.79, May 27 1:02 am$12.43, May 25 - May 27$23.50, May 25 - May 31$16.26, May 28 - May 29$13.78, May 28 4:53 am$23.50, May 25 - May 31$16.34, May 30 - May 31$13.76, May 30 2:46 pm$23.50, May 25 - May 31$16.34, May 30 - May 31$13.92, May 31 8:24 pm$23.26, Jun 2 - Jun 7$16.24, Jun 2 2:03 am$13.90, Jun 2 2:03 am$23.26, Jun 2 - Jun 7$16.00, Jun 3 7:32 am$13.86, Jun 3 7:32 am$23.26, Jun 2 - Jun 7$15.96, Jun 5 7:42 pm$13.82, Jun 4 - Jun 7$23.26, Jun 2 - Jun 7$15.92, Jun 7 1:46 am$13.82, Jun 4 - Jun 7$23.02, Jun 9 - Jun 14$15.85, Jun 9 6:36 am$13.72, Jun 9 6:36 am$23.02, Jun 9 - Jun 14$15.91, Jun 10 10:06 am$13.74, Jun 10 10:06 am$23.02, Jun 9 - Jun 14$15.99, Jun 12 12:56 pm$13.97, Jun 12 - Jun 15$23.02, Jun 9 - Jun 14$16.10, Jun 13 2:09 pm$13.97, Jun 12 - Jun 15$23.04, Jun 15 - Jun 22$16.05, Jun 15 3:35 pm$13.97, Jun 12 - Jun 15$23.04, Jun 15 - Jun 22$16.02, Jun 16 3:58 pm$14.13, Jun 16 - Jun 18$23.04, Jun 15 - Jun 22$15.87, Jun 18 4:07 pm$14.13, Jun 16 - Jun 18$23.04, Jun 15 - Jun 22$15.79, Jun 20 - Jun 22$14.52, Jun 19 - Jun 22$23.30, Jun 23 - Jul 13$15.74, Jun 23 5:22 pm$14.50, Jun 23 - Jun 25$23.30, Jun 23 - Jul 13$15.73, Jun 24 5:16 pm$14.50, Jun 23 - Jun 25$23.30, Jun 23 - Jul 13$15.70, Jun 26 - Jun 27$14.32, Jun 26 - Jul 2$23.30, Jun 23 - Jul 13$15.72, Jun 28 8:31 pm$14.32, Jun 26 - Jul 2$23.30, Jun 23 - Jul 13$15.64, Jun 29 - Jun 30$14.32, Jun 26 - Jul 2$23.30, Jun 23 - Jul 13$15.61, Jul 2 1:07 am$14.32, Jun 26 - Jul 2$23.30, Jun 23 - Jul 13$15.55, Jul 3 3:11 am$14.20, Jul 3 - Jul 6$23.30, Jun 23 - Jul 13$15.51, Jul 5 8:52 am$14.20, Jul 3 - Jul 6$23.30, Jun 23 - Jul 13$15.52, Jul 6 12:43 pm$14.20, Jul 3 - Jul 6$23.30, Jun 23 - Jul 13$15.51, Jul 7 3:18 pm$14.18, Jul 7 - Jul 9$23.30, Jun 23 - Jul 13$15.36, Jul 9 11:11 am$14.18, Jul 7 - Jul 9$23.30, Jun 23 - Jul 13$15.41, Jul 10 8:44 pm$14.14, Jul 10 8:44 pm$23.30, Jun 23 - Jul 13$15.50, Jul 12 - Jul 13$13.98, Jul 12 5:59 am$21.53, Jul 14 - Jul 22$15.41, Jul 14 1:30 pm$14.17, Jul 14 - Jul 16$21.53, Jul 14 - Jul 22$15.56, Jul 16 2:57 pm$14.17, Jul 14 - Jul 16$21.53, Jul 14 - Jul 22$15.59, Jul 17 4:14 pm$14.21, Jul 17 - Jul 20$21.53, Jul 14 - Jul 22$15.55, Jul 18 - Jul 19$14.21, Jul 17 - Jul 20$21.53, Jul 14 - Jul 22$15.52, Jul 20 5:10 pm$14.21, Jul 17 - Jul 20$21.53, Jul 14 - Jul 22$15.51, Jul 21 - Jul 22$14.19, Jul 21 - Jul 23$21.35, Jul 23 - Jul 29$15.51, Jul 24 6:15 pm$14.27, Jul 24 - Jul 27$21.35, Jul 23 - Jul 29$15.43, Jul 25 6:08 pm$14.27, Jul 24 - Jul 27$21.35, Jul 23 - Jul 29$15.46, Jul 27 5:35 pm$14.27, Jul 24 - Jul 27$21.35, Jul 23 - Jul 29$16.18, Jul 29 4:34 pm$14.23, Jul 29 4:34 pm$20.49, Jul 30 - Aug 5$15.93, Jul 30 4:42 pm$14.19, Jul 30 4:42 pm$20.49, Jul 30 - Aug 5$15.69, Aug 1 6:00 pm$14.21, Jul 31 - Aug 3$20.49, Jul 30 - Aug 5$15.56, Aug 2 - Aug 3$14.21, Jul 31 - Aug 3$20.49, Jul 30 - Aug 5$15.54, Aug 4 7:03 pm$14.24, Aug 4 - Aug 10$19.87, Aug 6 - Aug 13$15.56, Aug 6 7:51 pm$14.24, Aug 4 - Aug 10$19.87, Aug 6 - Aug 13$15.47, Aug 7 9:03 pm$14.24, Aug 4 - Aug 10$19.87, Aug 6 - Aug 13$15.48, Aug 10 12:12 am$14.24, Aug 4 - Aug 10$19.87, Aug 6 - Aug 13$15.41, Aug 11 2:06 am$14.22, Aug 11 2:06 am$19.87, Aug 6 - Aug 13$14.12, Aug 13 4:39 am$9.99, Aug 13 - Aug 16$20.17, Aug 14 - Aug 19$14.23, Aug 14 - Aug 17$9.99, Aug 13 - Aug 16$20.17, Aug 14 - Aug 19$15.59, Aug 17 - Aug 18$14.23, Aug 14 - Aug 17$20.17, Aug 14 - Aug 19$15.60, Aug 19 7:41 am$14.24, Aug 18 - Aug 20$20.46, Aug 20 - Sep 3$15.56, Aug 21 7:54 am$14.28, Aug 21 - Aug 24$20.46, Aug 20 - Sep 3$15.67, Aug 22 7:47 am$14.28, Aug 21 - Aug 24$20.46, Aug 20 - Sep 3$15.63, Aug 23 - Aug 24$14.28, Aug 21 - Aug 24$20.46, Aug 20 - Sep 3$15.74, Aug 26 6:33 am$14.31, Aug 25 - Aug 26$20.46, Aug 20 - Sep 3$15.63, Aug 27 6:40 am$14.27, Aug 27 6:40 am$20.46, Aug 20 - Sep 3$15.34, Aug 29 6:18 am$14.19, Aug 29 6:18 am$20.46, Aug 20 - Sep 3$14.09, Aug 31 5:28 am$12.21, Aug 31 5:28 am$20.46, Aug 20 - Sep 3$14.01, Sep 1 4:40 am$12.10, Sep 1 4:40 am$20.46, Aug 20 - Sep 3$14.00, Sep 2 - Sep 3$11.87, Sep 3 3:56 am$20.75, Sep 4 - Sep 11$15.24, Sep 4 - Sep 5$11.74, Sep 4 3:58 am$20.75, Sep 4 - Sep 11$15.24, Sep 4 - Sep 5$11.62, Sep 5 4:02 am$20.75, Sep 4 - Sep 11$14.88, Sep 8 3:52 am$11.44, Sep 7 - Sep 8$20.75, Sep 4 - Sep 11$14.81, Sep 9 4:18 am$12.71, Sep 9 - Sep 13$20.75, Sep 4 - Sep 11$14.24, Sep 11 4:54 am$12.71, Sep 9 - Sep 13$21.04, Sep 12 - Sep 17$13.98, Sep 13 - Sep 14$12.71, Sep 9 - Sep 13$21.04, Sep 12 - Sep 17$13.98, Sep 13 - Sep 14$13.43, Sep 14 4:46 am$21.04, Sep 12 - Sep 17$14.05, Sep 15 - Sep 17$13.73, Sep 16 4:52 am$21.04, Sep 12 - Sep 17$14.05, Sep 15 - Sep 17$13.58, Sep 17 5:01 am$20.82, Sep 18 - Sep 24$14.11, Sep 18 - Sep 21$13.30, Sep 19 5:28 am$20.82, Sep 18 - Sep 24$14.11, Sep 18 - Sep 21$13.05, Sep 21 5:49 am$20.82, Sep 18 - Sep 24$14.14, Sep 22 - Sep 24$12.91, Sep 22 6:18 am$20.82, Sep 18 - Sep 24$14.14, Sep 22 - Sep 24$12.71, Sep 24 - Sep 25$20.61, Sep 25 - Sep 30$14.10, Sep 25 8:37 am$12.71, Sep 24 - Sep 25$20.61, Sep 25 - Sep 30$13.86, Sep 27 10:21 am$12.98, Sep 27 10:21 am$20.61, Sep 25 - Sep 30$13.82, Sep 29 - Oct 2$12.82, Sep 29 - Oct 2$20.40, Oct 1 - Oct 8$13.82, Sep 29 - Oct 2$12.82, Sep 29 - Oct 2$20.40, Oct 1 - Oct 8$13.70, Oct 3 - Oct 4$12.70, Oct 3 - Oct 5$20.40, Oct 1 - Oct 8$13.77, Oct 5 - Oct 8$12.70, Oct 3 - Oct 5$20.40, Oct 1 - Oct 8$13.77, Oct 5 - Oct 8$12.77, Oct 7 - Oct 9$20.19, Oct 9 - Oct 14$13.90, Oct 9 - Oct 12$12.90, Oct 10 - Oct 13$20.19, Oct 9 - Oct 14$13.94, Oct 13 - Oct 14$12.90, Oct 10 - Oct 13$20.19, Oct 9 - Oct 14$13.94, Oct 13 - Oct 14$12.56, Oct 14 6:27 pm$19.98, Oct 15 - Oct 22$13.92, Oct 16 - Oct 18$12.54, Oct 16 - Oct 21$19.98, Oct 15 - Oct 22$13.91, Oct 19 11:11 pm$12.54, Oct 16 - Oct 21$19.98, Oct 15 - Oct 22$13.90, Oct 21 - Oct 23$12.90, Oct 22 - Oct 23$19.77, Oct 23 - Oct 29$13.90, Oct 21 - Oct 23$12.90, Oct 22 - Oct 23$19.77, Oct 23 - Oct 29$14.05, Oct 24 - Oct 26$13.05, Oct 24 - Oct 26$19.77, Oct 23 - Oct 29$15.28, Oct 28 7:28 am$14.01, Oct 28 7:28 am$19.82, Oct 30 - Nov 4$17.81, Oct 29 - Nov 3$13.97, Oct 30 10:09 am$19.82, Oct 30 - Nov 4$17.81, Oct 29 - Nov 3$13.95, Oct 31 11:38 am$19.82, Oct 30 - Nov 4$17.81, Oct 29 - Nov 3$13.91, Nov 2 1:49 pm$19.82, Oct 30 - Nov 4$17.81, Oct 29 - Nov 3$14.05, Nov 3 - Nov 5$19.87, Nov 5 - Nov 12$17.50, Nov 5 7:33 pm$14.05, Nov 3 - Nov 5$19.87, Nov 5 - Nov 12$17.26, Nov 6 9:52 pm$14.03, Nov 6 9:52 pm$19.87, Nov 5 - Nov 12$16.75, Nov 9 1:37 am$13.99, Nov 9 1:37 am$19.87, Nov 5 - Nov 12$16.55, Nov 10 3:39 am$13.97, Nov 10 3:39 am$19.87, Nov 5 - Nov 12$16.02, Nov 12 7:36 am$13.93, Nov 12 7:36 am$19.92, Nov 13 - Nov 18$15.93, Nov 13 9:28 am$13.91, Nov 13 9:28 am$19.92, Nov 13 - Nov 18$15.59, Nov 15 1:49 pm$13.87, Nov 15 1:49 pm$19.92, Nov 13 - Nov 18$15.33, Nov 16 4:56 pm$13.85, Nov 16 4:56 pm$19.92, Nov 13 - Nov 18$13.81, Nov 17 7:52 pm$13.05, Nov 17 7:52 pm$20.21, Nov 20 - Dec 1$13.84, Nov 20 - Nov 23$12.79, Nov 20 3:16 am$20.21, Nov 20 - Dec 1$13.84, Nov 20 - Nov 23$12.84, Nov 21 6:46 am$20.21, Nov 20 - Dec 1$14.40, Nov 23 1:36 pm$13.84, Nov 20 - Nov 23$20.21, Nov 20 - Dec 1$14.39, Nov 24 4:54 pm$13.82, Nov 24 4:54 pm$20.21, Nov 20 - Dec 1$14.32, Nov 25 8:22 pm$13.78, Nov 25 8:22 pm$20.21, Nov 20 - Dec 1$14.28, Nov 28 - Nov 29$13.74, Nov 28 5:34 am$20.21, Nov 20 - Dec 1$14.28, Nov 28 - Nov 29$13.72, Nov 29 10:53 am$20.21, Nov 20 - Dec 1$14.21, Nov 30 4:53 pm$13.70, Nov 30 4:53 pm$20.50, Dec 3 - Dec 14$14.17, Dec 3 5:41 am$13.64, Dec 3 5:41 am$20.50, Dec 3 - Dec 14$14.25, Dec 4 12:01 pm$13.62, Dec 4 12:01 pm$20.50, Dec 3 - Dec 14$14.26, Dec 5 - Dec 7$13.59, Dec 5 6:04 pm$20.50, Dec 3 - Dec 14$14.20, Dec 8 7:15 am$13.61, Dec 8 - Dec 9$20.50, Dec 3 - Dec 14$14.18, Dec 9 3:08 pm$13.61, Dec 8 - Dec 9$20.50, Dec 3 - Dec 14$14.32, Dec 10 10:50 pm$13.73, Dec 10 - Dec 13$20.50, Dec 3 - Dec 14$14.28, Dec 12 6:20 am$13.73, Dec 10 - Dec 13$20.50, Dec 3 - Dec 14$14.36, Dec 13 2:18 pm$13.73, Dec 10 - Dec 13$20.79, Dec 16 - Jan 2$14.31, Dec 16 5:26 am$13.69, Dec 16 - Dec 17$20.79, Dec 16 - Jan 2$14.14, Dec 17 12:35 pm$13.69, Dec 16 - Dec 17$20.79, Dec 16 - Jan 2$14.09, Dec 18 8:12 pm$13.65, Dec 18 8:12 pm$20.79, Dec 16 - Jan 2$14.08, Dec 20 3:08 am$13.63, Dec 20 3:08 am$20.79, Dec 16 - Jan 2$14.06, Dec 21 - Dec 22$14.06, Dec 22 4:40 pm$20.79, Dec 16 - Jan 2$14.02, Dec 23 10:40 pm$14.02, Dec 23 10:40 pm$20.79, Dec 16 - Jan 2$14.04, Dec 25 4:12 am$14.04, Dec 25 4:12 am$20.79, Dec 16 - Jan 2$14.06, Dec 26 2:54 pm$14.06, Dec 26 2:54 pm$20.79, Dec 16 - Jan 2$15.05, Dec 29 8:19 am$15.05, Dec 29 8:19 am$20.79, Dec 16 - Jan 2$14.87, Dec 30 3:47 pm$14.82, Dec 30 3:47 pm$20.79, Dec 16 - Jan 2$14.76, Dec 31 8:57 pm$14.71, Dec 31 8:57 pm$21.08, Jan 3 - Jan 10$14.91, Jan 3 8:39 am$14.90, Jan 3 8:39 am$21.08, Jan 3 - Jan 10$14.90, Jan 4 1:57 pm$14.87, Jan 4 1:57 pm$21.08, Jan 3 - Jan 10$14.81, Jan 5 7:29 pm$14.79, Jan 5 7:29 pm$21.08, Jan 3 - Jan 10$15.64, Jan 7 1:23 am$15.29, Jan 7 1:23 am$21.08, Jan 3 - Jan 10$14.79, Jan 9 2:35 pm$12.84, Jan 9 2:35 pm$21.08, Jan 3 - Jan 10$14.31, Jan 10 9:18 pm$13.67, Jan 10 9:18 pm$21.36, Jan 12 - Jan 26$13.75, Jan 12 4:03 am$13.30, Jan 12 4:03 am$21.36, Jan 12 - Jan 26$17.35, Jan 14 5:07 pm$16.35, Jan 14 5:07 pm$21.36, Jan 12 - Jan 26$17.50, Jan 16 12:00 am$17.19, Jan 16 12:00 am$21.36, Jan 12 - Jan 26$16.98, Jan 17 7:08 am$16.67, Jan 17 7:08 am$21.36, Jan 12 - Jan 26$16.41, Jan 18 2:09 pm$16.30, Jan 18 2:09 pm$21.36, Jan 12 - Jan 26$15.41, Jan 21 3:45 am$14.82, Jan 21 3:45 am$21.36, Jan 12 - Jan 26$14.98, Jan 22 11:13 am$14.49, Jan 22 11:13 am$21.36, Jan 12 - Jan 26$14.55, Jan 23 6:45 pm$14.18, Jan 23 6:45 pm$21.36, Jan 12 - Jan 26$14.03, Jan 25 2:14 am$13.89, Jan 25 2:14 am$21.64, Jan 27 - Feb 1$13.29, Jan 27 5:42 pm$13.07, Jan 27 5:42 pm$21.64, Jan 27 - Feb 1$13.47, Jan 29 12:57 am$13.11, Jan 29 12:57 am$21.64, Jan 27 - Feb 1$13.52, Jan 30 8:20 am$12.92, Jan 30 8:20 am$21.64, Jan 27 - Feb 1$13.41, Jan 31 2:50 pm$12.73, Jan 31 2:50 pm$21.92, Feb 3 - Feb 8$13.54, Feb 3 4:49 am$12.71, Feb 1 - Feb 4$21.92, Feb 3 - Feb 8$13.61, Feb 4 12:00 pm$12.71, Feb 1 - Feb 4$21.92, Feb 3 - Feb 8$13.70, Feb 5 7:40 pm$13.15, Feb 5 7:40 pm$21.92, Feb 3 - Feb 8$13.08, Feb 7 2:59 am$13.05, Feb 7 2:59 am$21.70, Feb 9 - Feb 16$13.66, Feb 9 6:08 pm$12.99, Feb 9 - Feb 11$21.70, Feb 9 - Feb 16$13.65, Feb 11 2:25 am$12.99, Feb 9 - Feb 11$21.70, Feb 9 - Feb 16$13.71, Feb 12 10:48 am$12.97, Feb 12 - Feb 15$21.70, Feb 9 - Feb 16$13.66, Feb 13 7:27 pm$12.97, Feb 12 - Feb 15$21.70, Feb 9 - Feb 16$13.67, Feb 15 5:03 am$12.97, Feb 12 - Feb 15$21.70, Feb 9 - Feb 16$13.63, Feb 16 2:39 pm$12.98, Feb 16 - Feb 18$21.48, Feb 18 - Feb 23$13.47, Feb 19 10:18 am$12.82, Feb 19 10:18 am$21.48, Feb 18 - Feb 23$13.57, Feb 20 - Feb 22$12.74, Feb 20 - Feb 22$21.48, Feb 18 - Feb 23$13.29, Feb 23 6:23 pm$13.22, Feb 23 6:23 pm$23.05, Feb 25 5:21 am$13.09, Feb 25 5:21 am$12.88, Feb 25 5:21 am$23.04, Feb 26 1:50 pm$13.11, Feb 26 1:50 pm$13.02, Feb 26 1:50 pm$21.26, Feb 27 - Mar 7$13.17, Feb 27 9:49 pm$12.71, Feb 27 - Feb 29$21.26, Feb 27 - Mar 7$13.00, Feb 29 10:00 am$12.71, Feb 27 - Feb 29$21.26, Feb 27 - Mar 7$13.11, Mar 2 7:53 am$13.03, Mar 2 7:53 am$21.26, Feb 27 - Mar 7$13.54, Mar 4 3:47 pm$13.22, Mar 4 3:47 pm$21.26, Feb 27 - Mar 7$13.49, Mar 7 9:41 am$12.84, Mar 7 9:41 am$21.04, Mar 10 - Mar 16$13.67, Mar 10 1:29 pm$13.56, Mar 10 1:29 pm$21.04, Mar 10 - Mar 16$14.13, Mar 13 11:05 pm$13.80, Mar 13 11:05 pm$21.04, Mar 10 - Mar 16$13.82, Mar 16 11:53 pm$13.82, Mar 16 11:53 pm$20.82, Mar 20 - Mar 23$13.93, Mar 20 12:15 am$13.90, Mar 20 12:15 am$20.82, Mar 20 - Mar 23$14.00, Mar 23 2:20 am$13.92, Mar 23 2:20 am$20.61, Mar 26 - Apr 4$13.87, Mar 26 4:29 am$13.87, Mar 26 4:29 am$20.61, Mar 26 - Apr 4$13.91, Mar 29 5:03 am$13.91, Mar 29 5:03 am$20.61, Mar 26 - Apr 4$14.17, Apr 1 6:02 am$13.97, Apr 1 - Apr 4$20.61, Mar 26 - Apr 4$13.97, Apr 1 - Apr 4$13.65, Apr 4 6:16 am 10,315991,882 1,171,875 781,250 390,625 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr Jun 2015 2016

Price Details

New

Latest $20.61 1 day ago
Highest $23.74 Apr 26, '15
Lowest $16.29 Jul 26, '14
Average $20.90 (30d avg)
$21.33 (90d avg)
$20.79 (180d avg)
$21.34 (365d avg)
$20.25 (Lifetime average)
Added Jul 26, 2014

3rd Party New

Latest $13.97 1 day ago
Highest $20.36 Mar 5, '15
Lowest $10.99 May 1, '15
Average $13.82 (30d avg)
$13.82 (90d avg)
$13.88 (180d avg)
$14.06 (365d avg)
$14.29 (Lifetime average)
Added Jul 26, 2014

3rd Party Used

Latest $13.65 1 day ago
Highest $26.32 Mar 19, '15
Lowest $9.99 Aug 13, '15
Average $13.79 (30d avg)
$13.87 (90d avg)
$14.18 (180d avg)
$14.21 (365d avg)
$14.64 (Lifetime average)
Added Jul 26, 2014

Sales Rank

30 day average: 57,248
90 day average: 75,982

Product Description

No matter how much experience you have with JavaScript, odds are you dont fully understand the language. As part of the "You Dont Know JS" series, this concise yet in-depth guide focuses on new asynchronous features and performance techniquesincluding Promises, generators, and Web Workersthat let you create sophisticated single-page web applications escape callback hell in the process.Like other books in this series, dives into trickier parts of the language that many JavaScript programmers simply avoid. Armed with this knowledge, you can become a true JavaScript master.With this book you will:

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