
- New In Chess YEARBOOK 106: The Chess Player's Guide to Opening News
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| Latest | $13.88 Apr 15, '16 |
| Highest | $32.95 Jan 14, '16 |
| Lowest | $4.36 Dec 19, '15 |
| Average | $25.17 (30d avg) $20.08 (90d avg) $19.67 (180d avg) $21.55 (365d avg) $22.39 (Lifetime average) |
| Added | Feb 15, 2014 |
| Last Seen | |
| Highest | $29.44 Aug 25, '14 |
| Lowest | $2.95 Dec 9, '15 |
| Average | $28.86 (30d avg) $28.86 (90d avg) $17.76 (180d avg) $18.59 (365d avg) $19.48 (Lifetime average) |
| Added | Feb 15, 2014 |
| Latest | $16.95 Apr 15, '16 |
| Highest | $72.53 Aug 26, '14 |
| Lowest | $8.13 Dec 19, '15 |
| Average | $17.03 (30d avg) $16.16 (90d avg) $16.37 (180d avg) $17.83 (365d avg) $23.70 (Lifetime average) |
| Added | Feb 15, 2014 |
30 day average: 1,037,252
90 day average: 1,549,199