Table 2. Estimated stock numbers. | ||||
Year\Age | 1 | 2 | 3 | 4+ |
1991 | 31202226 | 1908828 | 142771 | 914 |
1992 | 67862897 | 3704282 | 223016 | 20370 |
1993 | 66852550 | 8903901 | 437136 | 29231 |
1994 | 90512634 | 9810855 | 832343 | 42150 |
1995 | 53116597 | 12955099 | 1301464 | 66436 |
1996 | 35819393 | 6274473 | 1189448 | 124866 |
1997 | 53329489 | 4421546 | 528607 | 80258 |
1998 | 49130963 | 5832755 | 483594 | 42489 |
1999 | 101848808 | 6113439 | 462777 | 33691 |
2000 | 80438220 | 11072776 | 529136 | 32403 |
2001 | 40386252 | 8797692 | 984609 | 47146 |
2002 | 41657834 | 4657549 | 504842 | 46958 |
2003 | 59828937 | 4089773 | 288082 | 23040 |
2004 | 62208363 | 5261886 | 239426 | 9986 |
2005 | 98444156 | 5526139 | 270222 | 7858 |
2006 | 38532015 | 11172880 | 385386 | 14555 |
2007 | 33733434 | 4671543 | 772973 | 24711 |
2008 | 39507457 | 3980826 | 327748 | 42702 |
2009 | 107715064 | 4488369 | 345933 | 22159 |
2010 | 70703102 | 15855072 | 695927 | 54995 |
2011 | 41574602 | 9239515 | 2160824 | 128284 |