

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 8 | 27 | 0 | 6 | 42 |
| 1970 | 0 | 0 | 10 | 0 | 0 | 10 |
| 1971 | 0 | 11 | 0 | 0 | 3 | 14 |
| 1972 | 0 | 0 | 2 | 0 | 1 | 3 |
| 1973 | 0 | 1 | 1 | 0 | 1 | 3 |
| 1974 | 0 | 1 | 6 | 0 | 0 | 7 |
| 1975 | 2 | 4 | 9 | 0 | 1 | 16 |
| 1976 | 0 | 1 | 7 | 0 | 4 | 12 |
| 1977 | 0 | 0 | 14 | 0 | 2 | 16 |
| 1978 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1979 | 0 | 3 | 12 | 0 | 3 | 18 |
| 1980 | 1 | 4 | 8 | 0 | 3 | 16 |
| 1981 | 0 | 1 | 10 | 0 | 8 | 19 |
| 1982 | 0 | 1 | 13 | 0 | 5 | 19 |
| 1983 | 0 | 4 | 9 | 0 | 6 | 19 |
| 1984 | 0 | 3 | 7 | 0 | 6 | 16 |
| 1985 | 0 | 3 | 4 | 0 | 7 | 14 |
| 1986 | 0 | 7 | 8 | 0 | 3 | 18 |
| 1987 | 0 | 4 | 14 | 0 | 5 | 23 |
| 1988 | 1 | 9 | 15 | 0 | 4 | 29 |
| 1989 | 0 | 14 | 18 | 0 | 9 | 41 |
| 1990 | 1 | 59 | 28 | 1 | 7 | 96 |
| 1991 | 2 | 24 | 25 | 1 | 3 | 55 |
| 1992 | 3 | 7 | 38 | 0 | 7 | 55 |
| 1993 | 1 | 36 | 46 | 0 | 7 | 90 |
| 1994 | 3 | 100 | 142 | 0 | 9 | 254 |
| 1995 | 8 | 79 | 117 | 1 | 11 | 216 |
| 1996 | 6 | 76 | 140 | 0 | 7 | 229 |
| 1997 | 3 | 99 | 529 | 0 | 9 | 640 |
| 1998 | 6 | 100 | 407 | 0 | 10 | 523 |
| 1999 | 4 | 74 | 384 | 0 | 10 | 472 |
| 2000 | 4 | 60 | 585 | 0 | 18 | 667 |
| 2001 | 4 | 27 | 579 | 1 | 20 | 631 |
| 2002 | 1 | 43 | 730 | 0 | 2 | 776 |
| 2003 | 4 | 66 | 975 | 0 | 15 | 1060 |
| 2004 | 5 | 244 | 1298 | 0 | 15 | 1562 |
| 2005 | 3 | 209 | 634 | 0 | 17 | 863 |
| 2006 | 5 | 87 | 936 | 0 | 16 | 1044 |
| 2007 | 3 | 78 | 875 | 1 | 22 | 979 |
| 2008 | 6 | 240 | 622 | 1 | 12 | 881 |
| 2009 | 4 | 476 | 410 | 0 | 19 | 909 |
| 2010 | 5 | 456 | 425 | 0 | 18 | 904 |
| 2011 | 2 | 208 | 438 | 0 | 18 | 666 |
| 2012 | 10 | 583 | 526 | 0 | 32 | 1151 |
| 2013 | 8 | 675 | 593 | 1 | 27 | 1304 |
| 2014 | 6 | 1034 | 446 | 1 | 40 | 1527 |
| 2015 | 7 | 1069 | 594 | 0 | 70 | 1740 |
| 2016 | 4 | 1169 | 716 | 0 | 100 | 1989 |
| 2017 | 15 | 1282 | 811 | 0 | 70 | 2178 |
| 2018 | 8 | 1446 | 822 | 0 | 55 | 2331 |
| 2019 | 9 | 1565 | 869 | 2 | 71 | 2516 |
| 2020 | 3 | 1428 | 1203 | 0 | 46 | 2680 |
| 2021 | 12 | 1673 | 1190 | 0 | 92 | 2967 |
| 2022 | 11 | 1772 | 1550 | 0 | 83 | 3416 |
| 2023 | 15 | 2392 | 895 | 0 | 65 | 3367 |
| 2024 | 13 | 2257 | 920 | 0 | 54 | 3244 |
| 2025 | 0 | 2 | 9 | 0 | 0 | 11 |
| Total | 209 | 21276 | 21704 | 10 | 1154 | 44353 |