

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 17 | 0 | 33 | 51 |
| 1970 | 0 | 0 | 10 | 0 | 1 | 11 |
| 1971 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1972 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1973 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1974 | 0 | 0 | 3 | 0 | 3 | 6 |
| 1975 | 0 | 2 | 2 | 0 | 3 | 7 |
| 1976 | 0 | 0 | 3 | 0 | 6 | 9 |
| 1977 | 1 | 1 | 5 | 0 | 5 | 12 |
| 1978 | 0 | 1 | 8 | 0 | 6 | 15 |
| 1979 | 0 | 0 | 7 | 0 | 5 | 12 |
| 1980 | 0 | 0 | 1 | 0 | 7 | 8 |
| 1981 | 2 | 4 | 8 | 0 | 8 | 22 |
| 1982 | 0 | 0 | 6 | 0 | 7 | 13 |
| 1983 | 0 | 1 | 3 | 0 | 5 | 9 |
| 1984 | 0 | 0 | 4 | 0 | 4 | 8 |
| 1985 | 0 | 0 | 8 | 0 | 4 | 12 |
| 1986 | 0 | 1 | 6 | 0 | 4 | 11 |
| 1987 | 0 | 1 | 8 | 0 | 8 | 17 |
| 1988 | 0 | 1 | 11 | 0 | 10 | 22 |
| 1989 | 0 | 7 | 39 | 0 | 14 | 60 |
| 1990 | 0 | 28 | 53 | 1 | 13 | 95 |
| 1991 | 0 | 26 | 56 | 0 | 7 | 89 |
| 1992 | 0 | 37 | 27 | 0 | 6 | 70 |
| 1993 | 0 | 86 | 40 | 1 | 14 | 141 |
| 1994 | 1 | 204 | 52 | 0 | 17 | 274 |
| 1995 | 3 | 238 | 42 | 1 | 11 | 295 |
| 1996 | 0 | 213 | 38 | 0 | 10 | 261 |
| 1997 | 1 | 94 | 35 | 0 | 19 | 149 |
| 1998 | 0 | 84 | 22 | 0 | 8 | 114 |
| 1999 | 1 | 16 | 30 | 0 | 11 | 58 |
| 2000 | 0 | 161 | 41 | 0 | 18 | 220 |
| 2001 | 1 | 145 | 42 | 0 | 20 | 208 |
| 2002 | 0 | 135 | 70 | 0 | 10 | 215 |
| 2003 | 5 | 93 | 50 | 2 | 17 | 167 |
| 2004 | 1 | 158 | 60 | 0 | 10 | 229 |
| 2005 | 0 | 39 | 49 | 1 | 15 | 104 |
| 2006 | 0 | 45 | 58 | 0 | 17 | 120 |
| 2007 | 0 | 176 | 48 | 0 | 20 | 244 |
| 2008 | 2 | 75 | 31 | 0 | 11 | 119 |
| 2009 | 0 | 8 | 48 | 0 | 18 | 74 |
| 2010 | 3 | 57 | 66 | 0 | 17 | 143 |
| 2011 | 0 | 29 | 92 | 0 | 17 | 138 |
| 2012 | 0 | 80 | 98 | 0 | 24 | 202 |
| 2013 | 2 | 110 | 125 | 0 | 28 | 265 |
| 2014 | 1 | 113 | 151 | 0 | 44 | 309 |
| 2015 | 0 | 134 | 185 | 0 | 81 | 400 |
| 2016 | 2 | 195 | 218 | 0 | 83 | 498 |
| 2017 | 1 | 196 | 296 | 0 | 72 | 565 |
| 2018 | 7 | 224 | 292 | 0 | 80 | 603 |
| 2019 | 5 | 259 | 291 | 0 | 76 | 631 |
| 2020 | 5 | 591 | 78 | 1 | 88 | 763 |
| 2021 | 8 | 586 | 50 | 0 | 100 | 744 |
| 2022 | 11 | 476 | 279 | 0 | 114 | 880 |
| 2023 | 4 | 351 | 380 | 0 | 127 | 862 |
| 2024 | 7 | 444 | 450 | 0 | 144 | 1045 |
| 2025 | 1 | 1 | 32 | 0 | 3 | 37 |
| Total | 76 | 5926 | 4133 | 7 | 1507 | 11649 |