

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 26 | 0 | 4 | 31 |
| 1970 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1971 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 2 | 1 | 3 | 0 | 1 | 7 |
| 1974 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1975 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1976 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1977 | 0 | 0 | 1 | 0 | 2 | 3 |
| 1978 | 4 | 0 | 3 | 0 | 1 | 8 |
| 1979 | 0 | 0 | 7 | 0 | 0 | 7 |
| 1980 | 1 | 0 | 1 | 0 | 1 | 3 |
| 1981 | 3 | 0 | 2 | 0 | 0 | 5 |
| 1982 | 16 | 3 | 8 | 0 | 1 | 28 |
| 1983 | 29 | 2 | 5 | 0 | 0 | 36 |
| 1984 | 29 | 6 | 5 | 0 | 0 | 40 |
| 1985 | 32 | 8 | 17 | 0 | 1 | 58 |
| 1986 | 40 | 9 | 36 | 0 | 1 | 86 |
| 1987 | 49 | 10 | 42 | 0 | 1 | 102 |
| 1988 | 35 | 11 | 30 | 0 | 5 | 81 |
| 1989 | 63 | 13 | 112 | 0 | 4 | 192 |
| 1990 | 21 | 2 | 103 | 0 | 2 | 128 |
| 1991 | 26 | 2 | 123 | 0 | 0 | 151 |
| 1992 | 32 | 5 | 147 | 0 | 3 | 187 |
| 1993 | 29 | 4 | 163 | 0 | 4 | 200 |
| 1994 | 36 | 2 | 177 | 0 | 8 | 223 |
| 1995 | 27 | 5 | 156 | 0 | 0 | 188 |
| 1996 | 32 | 3 | 155 | 0 | 0 | 190 |
| 1997 | 31 | 2 | 176 | 0 | 2 | 211 |
| 1998 | 51 | 0 | 122 | 0 | 2 | 175 |
| 1999 | 37 | 1 | 225 | 0 | 7 | 270 |
| 2000 | 33 | 4 | 160 | 0 | 0 | 197 |
| 2001 | 49 | 9 | 221 | 0 | 3 | 282 |
| 2002 | 29 | 3 | 282 | 0 | 1 | 315 |
| 2003 | 19 | 1 | 172 | 0 | 0 | 192 |
| 2004 | 57 | 8 | 239 | 0 | 2 | 306 |
| 2005 | 48 | 33 | 325 | 0 | 2 | 408 |
| 2006 | 38 | 15 | 380 | 0 | 4 | 437 |
| 2007 | 89 | 4 | 352 | 0 | 2 | 447 |
| 2008 | 54 | 7 | 302 | 0 | 2 | 365 |
| 2009 | 79 | 5 | 319 | 0 | 8 | 411 |
| 2010 | 132 | 21 | 376 | 0 | 0 | 529 |
| 2011 | 112 | 16 | 370 | 0 | 2 | 500 |
| 2012 | 149 | 12 | 393 | 0 | 4 | 558 |
| 2013 | 134 | 39 | 457 | 0 | 2 | 632 |
| 2014 | 168 | 16 | 425 | 0 | 5 | 614 |
| 2015 | 190 | 21 | 564 | 0 | 4 | 779 |
| 2016 | 80 | 14 | 477 | 0 | 6 | 577 |
| 2017 | 60 | 15 | 474 | 0 | 7 | 556 |
| 2018 | 98 | 14 | 621 | 0 | 0 | 733 |
| 2019 | 65 | 6 | 661 | 0 | 2 | 734 |
| 2020 | 139 | 24 | 563 | 0 | 7 | 733 |
| 2021 | 163 | 25 | 599 | 0 | 2 | 789 |
| 2022 | 146 | 30 | 740 | 0 | 2 | 918 |
| 2023 | 184 | 30 | 766 | 0 | 6 | 986 |
| 2024 | 194 | 10 | 788 | 0 | 15 | 1007 |
| 2025 | 1 | 7 | 27 | 0 | 0 | 35 |
| Total | 3136 | 478 | 12912 | 0 | 141 | 16667 |