

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 11 | 1 | 5 | 0 | 43 | 60 |
| 1970 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1971 | 0 | 0 | 1 | 0 | 3 | 4 |
| 1972 | 0 | 1 | 0 | 0 | 4 | 5 |
| 1973 | 0 | 0 | 3 | 0 | 5 | 8 |
| 1974 | 2 | 0 | 4 | 0 | 4 | 10 |
| 1975 | 2 | 0 | 0 | 0 | 4 | 6 |
| 1976 | 0 | 0 | 4 | 0 | 8 | 12 |
| 1977 | 20 | 2 | 17 | 0 | 9 | 48 |
| 1978 | 52 | 7 | 8 | 0 | 9 | 76 |
| 1979 | 68 | 3 | 14 | 0 | 10 | 95 |
| 1980 | 35 | 5 | 4 | 0 | 7 | 51 |
| 1981 | 19 | 3 | 7 | 0 | 13 | 42 |
| 1982 | 16 | 3 | 9 | 0 | 14 | 42 |
| 1983 | 37 | 5 | 14 | 0 | 11 | 67 |
| 1984 | 36 | 2 | 5 | 0 | 13 | 56 |
| 1985 | 7 | 10 | 6 | 0 | 11 | 34 |
| 1986 | 5 | 8 | 9 | 0 | 15 | 37 |
| 1987 | 3 | 1 | 13 | 0 | 16 | 33 |
| 1988 | 24 | 5 | 17 | 0 | 16 | 62 |
| 1989 | 8 | 0 | 11 | 0 | 14 | 33 |
| 1990 | 24 | 7 | 21 | 1 | 17 | 70 |
| 1991 | 23 | 6 | 36 | 0 | 11 | 76 |
| 1992 | 15 | 3 | 33 | 0 | 16 | 67 |
| 1993 | 20 | 4 | 37 | 1 | 17 | 79 |
| 1994 | 20 | 8 | 65 | 0 | 16 | 109 |
| 1995 | 1 | 7 | 56 | 0 | 15 | 79 |
| 1996 | 3 | 7 | 55 | 0 | 10 | 75 |
| 1997 | 2 | 5 | 56 | 0 | 20 | 83 |
| 1998 | 5 | 10 | 49 | 0 | 18 | 82 |
| 1999 | 7 | 6 | 88 | 0 | 15 | 116 |
| 2000 | 7 | 3 | 68 | 0 | 19 | 97 |
| 2001 | 8 | 5 | 60 | 0 | 19 | 92 |
| 2002 | 9 | 1 | 58 | 0 | 15 | 83 |
| 2003 | 12 | 2 | 66 | 0 | 15 | 95 |
| 2004 | 12 | 3 | 49 | 0 | 20 | 84 |
| 2005 | 2 | 3 | 43 | 0 | 18 | 66 |
| 2006 | 4 | 1 | 53 | 1 | 16 | 75 |
| 2007 | 3 | 1 | 72 | 4 | 25 | 105 |
| 2008 | 4 | 1 | 55 | 3 | 25 | 88 |
| 2009 | 2 | 5 | 92 | 0 | 21 | 120 |
| 2010 | 3 | 2 | 63 | 0 | 19 | 87 |
| 2011 | 4 | 7 | 140 | 0 | 23 | 174 |
| 2012 | 9 | 2 | 123 | 0 | 48 | 182 |
| 2013 | 1 | 3 | 170 | 0 | 44 | 218 |
| 2014 | 2 | 7 | 177 | 0 | 64 | 250 |
| 2015 | 6 | 6 | 257 | 0 | 89 | 358 |
| 2016 | 4 | 11 | 332 | 0 | 123 | 470 |
| 2017 | 9 | 8 | 369 | 0 | 135 | 521 |
| 2018 | 6 | 7 | 350 | 0 | 139 | 502 |
| 2019 | 3 | 7 | 398 | 0 | 106 | 514 |
| 2020 | 3 | 4 | 401 | 0 | 113 | 521 |
| 2021 | 1 | 5 | 405 | 0 | 112 | 523 |
| 2022 | 8 | 8 | 390 | 0 | 121 | 527 |
| 2023 | 5 | 5 | 389 | 0 | 152 | 551 |
| 2024 | 2 | 4 | 415 | 0 | 155 | 576 |
| 2025 | 1 | 1 | 10 | 0 | 8 | 20 |
| Total | 595 | 231 | 5652 | 10 | 2029 | 8517 |