

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 3 | 0 | 14 | 0 | 2 | 19 |
| 1970 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1971 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 7 | 0 | 0 | 7 |
| 1974 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1975 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1976 | 0 | 0 | 1 | 0 | 2 | 3 |
| 1977 | 0 | 0 | 9 | 0 | 0 | 9 |
| 1978 | 0 | 0 | 4 | 0 | 1 | 5 |
| 1979 | 0 | 0 | 8 | 0 | 1 | 9 |
| 1980 | 0 | 0 | 8 | 0 | 0 | 8 |
| 1981 | 0 | 0 | 14 | 0 | 1 | 15 |
| 1982 | 0 | 2 | 14 | 0 | 0 | 16 |
| 1983 | 0 | 0 | 10 | 0 | 1 | 11 |
| 1984 | 0 | 0 | 5 | 0 | 1 | 6 |
| 1985 | 2 | 0 | 3 | 0 | 0 | 5 |
| 1986 | 1 | 0 | 12 | 0 | 1 | 14 |
| 1987 | 1 | 0 | 5 | 0 | 1 | 7 |
| 1988 | 2 | 0 | 8 | 0 | 1 | 11 |
| 1989 | 2 | 1 | 15 | 0 | 0 | 18 |
| 1990 | 2 | 5 | 18 | 0 | 0 | 25 |
| 1991 | 5 | 2 | 58 | 0 | 0 | 65 |
| 1992 | 3 | 0 | 20 | 0 | 0 | 23 |
| 1993 | 3 | 4 | 26 | 0 | 2 | 35 |
| 1994 | 2 | 12 | 37 | 0 | 1 | 52 |
| 1995 | 16 | 5 | 37 | 0 | 0 | 58 |
| 1996 | 12 | 12 | 43 | 0 | 0 | 67 |
| 1997 | 5 | 12 | 47 | 0 | 1 | 65 |
| 1998 | 3 | 6 | 29 | 0 | 1 | 39 |
| 1999 | 1 | 6 | 26 | 0 | 1 | 34 |
| 2000 | 5 | 6 | 34 | 0 | 1 | 46 |
| 2001 | 8 | 3 | 26 | 0 | 1 | 38 |
| 2002 | 3 | 2 | 39 | 0 | 0 | 44 |
| 2003 | 2 | 10 | 56 | 0 | 0 | 68 |
| 2004 | 1 | 4 | 44 | 0 | 1 | 50 |
| 2005 | 0 | 5 | 62 | 0 | 0 | 67 |
| 2006 | 7 | 2 | 67 | 0 | 2 | 78 |
| 2007 | 1 | 0 | 91 | 0 | 1 | 93 |
| 2008 | 2 | 2 | 109 | 0 | 1 | 114 |
| 2009 | 12 | 9 | 124 | 0 | 0 | 145 |
| 2010 | 11 | 7 | 155 | 0 | 0 | 173 |
| 2011 | 7 | 3 | 214 | 0 | 2 | 226 |
| 2012 | 11 | 3 | 241 | 0 | 2 | 257 |
| 2013 | 11 | 2 | 259 | 0 | 1 | 273 |
| 2014 | 13 | 7 | 209 | 0 | 5 | 234 |
| 2015 | 12 | 2 | 283 | 0 | 1 | 298 |
| 2016 | 15 | 1 | 304 | 0 | 2 | 322 |
| 2017 | 25 | 0 | 306 | 0 | 1 | 332 |
| 2018 | 25 | 4 | 410 | 0 | 1 | 440 |
| 2019 | 48 | 2 | 418 | 0 | 1 | 469 |
| 2020 | 4 | 5 | 457 | 0 | 4 | 470 |
| 2021 | 1 | 3 | 601 | 0 | 9 | 614 |
| 2022 | 3 | 0 | 653 | 0 | 4 | 660 |
| 2023 | 18 | 6 | 512 | 0 | 1 | 537 |
| 2024 | 9 | 5 | 419 | 0 | 3 | 436 |
| 2025 | 0 | 0 | 12 | 0 | 0 | 12 |
| Total | 317 | 160 | 6593 | 0 | 63 | 7133 |