

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 1 | 0 | 3 | 4 |
| 1974 | 0 | 0 | 4 | 0 | 6 | 10 |
| 1975 | 0 | 0 | 0 | 0 | 8 | 8 |
| 1976 | 0 | 0 | 3 | 0 | 12 | 15 |
| 1977 | 0 | 0 | 5 | 0 | 11 | 16 |
| 1978 | 0 | 0 | 7 | 0 | 12 | 19 |
| 1979 | 0 | 0 | 2 | 0 | 15 | 17 |
| 1980 | 0 | 0 | 1 | 0 | 14 | 15 |
| 1981 | 0 | 0 | 1 | 0 | 18 | 19 |
| 1982 | 0 | 0 | 4 | 0 | 22 | 26 |
| 1983 | 0 | 0 | 5 | 0 | 17 | 22 |
| 1984 | 0 | 0 | 1 | 0 | 20 | 21 |
| 1985 | 0 | 2 | 4 | 0 | 17 | 23 |
| 1986 | 0 | 2 | 9 | 0 | 19 | 30 |
| 1987 | 0 | 2 | 12 | 0 | 20 | 34 |
| 1988 | 0 | 2 | 6 | 1 | 23 | 32 |
| 1989 | 0 | 9 | 12 | 0 | 19 | 40 |
| 1990 | 0 | 15 | 10 | 1 | 19 | 45 |
| 1991 | 0 | 16 | 26 | 1 | 17 | 60 |
| 1992 | 2 | 6 | 24 | 0 | 21 | 53 |
| 1993 | 2 | 8 | 37 | 0 | 23 | 70 |
| 1994 | 2 | 25 | 67 | 0 | 29 | 123 |
| 1995 | 5 | 9 | 30 | 0 | 22 | 66 |
| 1996 | 3 | 22 | 28 | 0 | 22 | 75 |
| 1997 | 1 | 17 | 70 | 0 | 27 | 115 |
| 1998 | 1 | 35 | 73 | 0 | 31 | 140 |
| 1999 | 0 | 18 | 71 | 0 | 20 | 109 |
| 2000 | 0 | 22 | 86 | 0 | 35 | 143 |
| 2001 | 2 | 7 | 105 | 0 | 35 | 149 |
| 2002 | 3 | 1 | 114 | 0 | 22 | 140 |
| 2003 | 1 | 3 | 124 | 0 | 24 | 152 |
| 2004 | 3 | 7 | 129 | 0 | 25 | 164 |
| 2005 | 0 | 0 | 119 | 0 | 33 | 152 |
| 2006 | 0 | 5 | 195 | 0 | 36 | 236 |
| 2007 | 0 | 2 | 155 | 3 | 36 | 196 |
| 2008 | 1 | 5 | 187 | 10 | 27 | 230 |
| 2009 | 3 | 11 | 185 | 0 | 52 | 251 |
| 2010 | 2 | 1 | 211 | 1 | 50 | 265 |
| 2011 | 1 | 1 | 312 | 1 | 64 | 379 |
| 2012 | 3 | 11 | 515 | 0 | 118 | 647 |
| 2013 | 4 | 1 | 611 | 0 | 121 | 737 |
| 2014 | 3 | 8 | 702 | 0 | 176 | 889 |
| 2015 | 2 | 8 | 974 | 3 | 285 | 1272 |
| 2016 | 3 | 1 | 1199 | 0 | 424 | 1627 |
| 2017 | 1 | 8 | 1443 | 1 | 426 | 1879 |
| 2018 | 2 | 3 | 1455 | 5 | 483 | 1948 |
| 2019 | 9 | 87 | 1632 | 9 | 364 | 2101 |
| 2020 | 3 | 0 | 1953 | 0 | 462 | 2418 |
| 2021 | 3 | 3 | 2126 | 3 | 482 | 2617 |
| 2022 | 0 | 3 | 2222 | 2 | 514 | 2741 |
| 2023 | 2 | 9 | 1886 | 0 | 541 | 2438 |
| 2024 | 5 | 6 | 2246 | 0 | 629 | 2886 |
| 2025 | 0 | 4 | 16 | 0 | 7 | 27 |
| Total | 72 | 405 | 21420 | 41 | 5958 | 27896 |