

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 3 | 14 | 0 | 2 | 20 |
| 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1971 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1972 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1973 | 0 | 1 | 3 | 0 | 1 | 5 |
| 1974 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1975 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1976 | 0 | 2 | 2 | 0 | 0 | 4 |
| 1977 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1978 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1979 | 0 | 1 | 4 | 0 | 0 | 5 |
| 1980 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1981 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1982 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1983 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1984 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1985 | 1 | 0 | 2 | 0 | 1 | 4 |
| 1986 | 0 | 0 | 8 | 0 | 2 | 10 |
| 1987 | 0 | 2 | 7 | 0 | 3 | 12 |
| 1988 | 0 | 2 | 6 | 0 | 0 | 8 |
| 1989 | 0 | 6 | 8 | 0 | 2 | 16 |
| 1990 | 0 | 8 | 4 | 0 | 4 | 16 |
| 1991 | 3 | 8 | 9 | 0 | 1 | 21 |
| 1992 | 2 | 56 | 14 | 0 | 0 | 72 |
| 1993 | 1 | 81 | 10 | 0 | 1 | 93 |
| 1994 | 0 | 404 | 19 | 0 | 5 | 428 |
| 1995 | 1 | 412 | 14 | 0 | 3 | 430 |
| 1996 | 0 | 316 | 5 | 0 | 0 | 321 |
| 1997 | 1 | 131 | 11 | 0 | 1 | 144 |
| 1998 | 1 | 320 | 7 | 0 | 4 | 332 |
| 1999 | 0 | 40 | 10 | 0 | 1 | 51 |
| 2000 | 0 | 275 | 14 | 0 | 2 | 291 |
| 2001 | 0 | 81 | 15 | 0 | 2 | 98 |
| 2002 | 1 | 232 | 18 | 0 | 0 | 251 |
| 2003 | 2 | 55 | 13 | 0 | 3 | 73 |
| 2004 | 0 | 265 | 14 | 0 | 2 | 281 |
| 2005 | 0 | 115 | 19 | 0 | 0 | 134 |
| 2006 | 1 | 115 | 15 | 0 | 3 | 134 |
| 2007 | 0 | 118 | 13 | 0 | 3 | 134 |
| 2008 | 0 | 68 | 28 | 0 | 0 | 96 |
| 2009 | 0 | 12 | 26 | 0 | 0 | 38 |
| 2010 | 0 | 75 | 45 | 0 | 1 | 121 |
| 2011 | 1 | 47 | 24 | 1 | 2 | 75 |
| 2012 | 1 | 77 | 28 | 0 | 5 | 111 |
| 2013 | 1 | 106 | 48 | 0 | 3 | 158 |
| 2014 | 1 | 94 | 73 | 0 | 3 | 171 |
| 2015 | 1 | 107 | 71 | 0 | 8 | 187 |
| 2016 | 2 | 133 | 74 | 0 | 12 | 221 |
| 2017 | 2 | 137 | 86 | 1 | 10 | 236 |
| 2018 | 3 | 158 | 112 | 0 | 1 | 274 |
| 2019 | 0 | 108 | 74 | 0 | 1 | 183 |
| 2020 | 0 | 145 | 133 | 0 | 2 | 280 |
| 2021 | 1 | 126 | 89 | 0 | 5 | 221 |
| 2022 | 6 | 128 | 106 | 0 | 5 | 245 |
| 2023 | 1 | 143 | 67 | 0 | 2 | 213 |
| 2024 | 0 | 170 | 76 | 0 | 2 | 248 |
| 2025 | 1 | 16 | 5 | 0 | 0 | 22 |
| 2026 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 36 | 4902 | 1466 | 2 | 110 | 6516 |