
- What I Know
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Amazon
From $13.99 (New)
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Best Buy
From $13.99 (New)

From $13.99 (New)
From $13.99 (New)

| Latest | $13.99 23 hrs ago |
| Highest | $19.07 Aug 11, '15 |
| Lowest | $13.99 Mar 13, '16 |
| Average | $16.86 (30d avg) $16.85 (90d avg) $15.63 (180d avg) $15.43 (365d avg) $15.66 (Lifetime average) |
| Added | Oct 12, 2013 |
| Latest | $9.97 23 hrs ago |
| Highest | $11.87 Sep 16, '15 |
| Lowest | $9.81 Aug 19, '14 |
| Average | $10.34 (30d avg) $10.44 (90d avg) $10.28 (180d avg) $10.56 (365d avg) $10.39 (Lifetime average) |
| Added | Oct 12, 2013 |
| Latest | $3.76 23 hrs ago |
| Highest | $10.99 Jun 18, '14 |
| Lowest | $0.95 Mar 19, '16 |
| Average | $3.54 (30d avg) $4.25 (90d avg) $4.18 (180d avg) $4.70 (365d avg) $5.77 (Lifetime average) |
| Added | Oct 12, 2013 |
30 day average: 112,528
90 day average: 106,691
What I Know

| Latest | $13.99 21 hrs ago |
| Highest | $14.99 Mar 13, '14 |
| Lowest | $13.99 Aug 5, '15 |
| Average | $13.99 (30d avg) $13.99 (90d avg) $13.99 (180d avg) $14.35 (365d avg) $14.68 (Lifetime average) |
| Added | Mar 13, 2014 |
What I Know - CD