

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 2 | 2 | 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 | 0 | 1 |
| 1974 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1975 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1976 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1977 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1978 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1980 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1981 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1982 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1983 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1984 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1985 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1986 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1987 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1988 | 1 | 1 | 2 | 0 | 0 | 4 |
| 1989 | 0 | 2 | 1 | 0 | 0 | 3 |
| 1990 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1991 | 1 | 0 | 2 | 0 | 0 | 3 |
| 1992 | 1 | 3 | 5 | 0 | 0 | 9 |
| 1993 | 2 | 3 | 3 | 0 | 0 | 8 |
| 1994 | 5 | 6 | 13 | 0 | 0 | 24 |
| 1995 | 1 | 3 | 5 | 0 | 0 | 9 |
| 1996 | 1 | 8 | 3 | 0 | 0 | 12 |
| 1997 | 1 | 1 | 1 | 0 | 0 | 3 |
| 1998 | 0 | 7 | 3 | 0 | 0 | 10 |
| 1999 | 1 | 10 | 5 | 0 | 0 | 16 |
| 2000 | 4 | 8 | 2 | 0 | 0 | 14 |
| 2001 | 2 | 3 | 6 | 0 | 0 | 11 |
| 2002 | 1 | 0 | 6 | 0 | 0 | 7 |
| 2003 | 2 | 5 | 7 | 0 | 0 | 14 |
| 2004 | 2 | 15 | 5 | 0 | 0 | 22 |
| 2005 | 1 | 5 | 9 | 0 | 0 | 15 |
| 2006 | 0 | 9 | 10 | 0 | 0 | 19 |
| 2007 | 4 | 22 | 14 | 0 | 0 | 40 |
| 2008 | 1 | 3 | 14 | 0 | 0 | 18 |
| 2009 | 4 | 6 | 25 | 0 | 0 | 35 |
| 2010 | 4 | 9 | 31 | 0 | 0 | 44 |
| 2011 | 3 | 11 | 29 | 0 | 0 | 43 |
| 2012 | 8 | 36 | 34 | 0 | 0 | 78 |
| 2013 | 14 | 48 | 40 | 0 | 0 | 102 |
| 2014 | 1 | 68 | 77 | 0 | 0 | 146 |
| 2015 | 6 | 62 | 100 | 0 | 3 | 171 |
| 2016 | 9 | 129 | 126 | 0 | 9 | 273 |
| 2017 | 14 | 127 | 175 | 0 | 1 | 317 |
| 2018 | 7 | 116 | 133 | 0 | 0 | 256 |
| 2019 | 8 | 99 | 134 | 0 | 3 | 244 |
| 2020 | 9 | 132 | 176 | 0 | 2 | 319 |
| 2021 | 9 | 120 | 171 | 0 | 1 | 301 |
| 2022 | 9 | 127 | 188 | 0 | 5 | 329 |
| 2023 | 10 | 134 | 123 | 0 | 11 | 278 |
| 2024 | 9 | 186 | 160 | 0 | 9 | 364 |
| 2025 | 0 | 0 | 6 | 0 | 1 | 7 |
| Total | 155 | 1530 | 1868 | 0 | 45 | 3598 |