| Table 3. Estimated stock numbers at age. | ||||||
| Year Age | 0 | 1 | 2 | 3 | 4 | 5 |
| 2006 | 2686118695 | 1343760909 | 967087649 | 387578348 | 87490963 | 11163858 |
| 2007 | 2686122781 | 1182369810 | 564206835 | 338544743 | 138373452 | 35465834 |
| 2008 | 2686127481 | 1185843052 | 519185341 | 212219298 | 120828642 | 58409304 |
| 2009 | 2686130922 | 1183189608 | 505780695 | 205931842 | 80518196 | 59268847 |
| 2010 | 2686136660 | 1175508759 | 482917290 | 183269529 | 71592607 | 41822489 |
| 2011 | 2686142998 | 1160566041 | 456263374 | 165632101 | 60028245 | 34260666 |
| 2012 | 2686146565 | 1166632690 | 483701418 | 169484770 | 55851293 | 22043997 |
| 2013 | 2686149388 | 1148040787 | 460392188 | 168529595 | 57361800 | 20383762 |
| 2014 | 2686149297 | 1148667693 | 456708475 | 160853300 | 56667313 | 17728271 |
| 2015 | 2686145618 | 1147157871 | 440282002 | 146562884 | 55328885 | 15419722 |
| 2016 | 2686142334 | 1145746767 | 438729294 | 143992223 | 49553393 | 18773750 |
| 2017 | 2686143460 | 1157712409 | 478043935 | 164304863 | 50525089 | 16567954 |