Table 2. Estimated stock numbers. | ||||||
Year\Age | 1 | 2 | 3 | 4 | 5 | 6+ |
1997 | 15967 | 6416 | 8998 | 1408 | 335 | 135 |
1998 | 13623 | 11081 | 2698 | 2758 | 396 | 112 |
1999 | 13395 | 9074 | 5912 | 686 | 587 | 110 |
2000 | 7536 | 8560 | 3685 | 1423 | 168 | 145 |
2001 | 6588 | 4314 | 3041 | 895 | 259 | 61 |
2002 | 11827 | 4015 | 1641 | 627 | 134 | 59 |
2003 | 2874 | 6668 | 1412 | 420 | 160 | 40 |
2004 | 17742 | 1951 | 2312 | 366 | 120 | 69 |
2005 | 8966 | 10672 | 585 | 740 | 100 | 55 |
2006 | 9609 | 5264 | 3187 | 174 | 175 | 45 |
2007 | 2654 | 4238 | 1146 | 626 | 53 | 81 |
2008 | 1475 | 956 | 652 | 205 | 146 | 33 |
2009 | 4632 | 589 | 186 | 125 | 48 | 25 |
2010 | 4490 | 2142 | 178 | 47 | 23 | 12 |
2011 | 5469 | 2336 | 607 | 52 | 15 | 8 |
2012 | 12243 | 2529 | 466 | 188 | 28 | 10 |
2013 | 17920 | 5858 | 894 | 229 | 64 | 19 |
2014 | 5502 | 9994 | 1666 | 470 | 136 | 44 |
2015 | 3100 | 2079 | 2751 | 994 | 270 | 108 |
2016 | 672 | 1133 | 803 | 1007 | 467 | 174 |
2017 | 5720 | 437 | 385 | 276 | 321 | 168 |
2018 | 610 | 2414 | 73 | 132 | 138 | 252 |