

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 14 | 0 | 4 | 19 |
| 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1971 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1972 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1973 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1974 | 0 | 0 | 4 | 0 | 1 | 5 |
| 1975 | 0 | 0 | 5 | 0 | 2 | 7 |
| 1976 | 0 | 0 | 2 | 0 | 2 | 4 |
| 1977 | 1 | 0 | 14 | 0 | 2 | 17 |
| 1978 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1979 | 1 | 0 | 11 | 0 | 1 | 13 |
| 1980 | 0 | 0 | 11 | 0 | 1 | 12 |
| 1981 | 0 | 1 | 10 | 0 | 0 | 11 |
| 1982 | 0 | 0 | 17 | 0 | 2 | 19 |
| 1983 | 0 | 0 | 8 | 0 | 0 | 8 |
| 1984 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1985 | 0 | 7 | 6 | 0 | 2 | 15 |
| 1986 | 0 | 7 | 12 | 0 | 1 | 20 |
| 1987 | 0 | 3 | 13 | 0 | 0 | 16 |
| 1988 | 1 | 7 | 8 | 0 | 3 | 19 |
| 1989 | 2 | 6 | 12 | 0 | 2 | 22 |
| 1990 | 3 | 17 | 24 | 0 | 0 | 44 |
| 1991 | 16 | 14 | 26 | 0 | 1 | 57 |
| 1992 | 1 | 11 | 18 | 0 | 2 | 32 |
| 1993 | 7 | 13 | 39 | 0 | 0 | 59 |
| 1994 | 1 | 26 | 37 | 0 | 0 | 64 |
| 1995 | 2 | 11 | 45 | 0 | 0 | 58 |
| 1996 | 7 | 29 | 28 | 0 | 0 | 64 |
| 1997 | 2 | 28 | 58 | 0 | 1 | 89 |
| 1998 | 3 | 24 | 53 | 0 | 1 | 81 |
| 1999 | 1 | 8 | 38 | 0 | 2 | 49 |
| 2000 | 3 | 7 | 49 | 0 | 0 | 59 |
| 2001 | 2 | 7 | 49 | 0 | 1 | 59 |
| 2002 | 1 | 3 | 78 | 0 | 0 | 82 |
| 2003 | 5 | 5 | 83 | 0 | 1 | 94 |
| 2004 | 4 | 11 | 91 | 0 | 1 | 107 |
| 2005 | 3 | 5 | 130 | 0 | 0 | 138 |
| 2006 | 9 | 5 | 106 | 0 | 1 | 121 |
| 2007 | 3 | 6 | 120 | 0 | 0 | 129 |
| 2008 | 5 | 5 | 135 | 0 | 2 | 147 |
| 2009 | 2 | 3 | 215 | 0 | 1 | 221 |
| 2010 | 8 | 3 | 174 | 0 | 0 | 185 |
| 2011 | 10 | 9 | 236 | 0 | 1 | 256 |
| 2012 | 3 | 11 | 230 | 0 | 0 | 244 |
| 2013 | 8 | 6 | 245 | 0 | 0 | 259 |
| 2014 | 6 | 10 | 263 | 0 | 0 | 279 |
| 2015 | 5 | 14 | 363 | 0 | 0 | 382 |
| 2016 | 12 | 7 | 419 | 0 | 0 | 438 |
| 2017 | 13 | 10 | 477 | 0 | 0 | 500 |
| 2018 | 11 | 8 | 609 | 0 | 0 | 628 |
| 2019 | 17 | 6 | 603 | 0 | 0 | 626 |
| 2020 | 8 | 6 | 589 | 0 | 0 | 603 |
| 2021 | 4 | 5 | 673 | 0 | 0 | 682 |
| 2022 | 7 | 9 | 734 | 0 | 0 | 750 |
| 2023 | 19 | 15 | 706 | 0 | 1 | 741 |
| 2024 | 15 | 18 | 659 | 0 | 0 | 692 |
| 2025 | 0 | 0 | 4 | 0 | 0 | 4 |
| Total | 232 | 406 | 8569 | 0 | 42 | 9249 |