

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 0 | 6 | 0 | 2 | 8 |
| 1970 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1974 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1975 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1976 | 0 | 0 | 0 | 0 | 2 | 2 |
| 1977 | 0 | 0 | 2 | 0 | 2 | 4 |
| 1978 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1979 | 0 | 1 | 5 | 0 | 0 | 6 |
| 1980 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1981 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1982 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1983 | 0 | 0 | 2 | 0 | 1 | 3 |
| 1984 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1985 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1986 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1987 | 0 | 0 | 4 | 0 | 1 | 5 |
| 1988 | 0 | 1 | 3 | 0 | 1 | 5 |
| 1989 | 0 | 0 | 2 | 0 | 3 | 5 |
| 1990 | 0 | 1 | 7 | 0 | 2 | 10 |
| 1991 | 0 | 3 | 43 | 0 | 2 | 48 |
| 1992 | 0 | 1 | 25 | 0 | 0 | 26 |
| 1993 | 0 | 1 | 20 | 0 | 3 | 24 |
| 1994 | 0 | 1 | 29 | 0 | 7 | 37 |
| 1995 | 0 | 0 | 20 | 0 | 1 | 21 |
| 1996 | 2 | 1 | 23 | 0 | 1 | 27 |
| 1997 | 1 | 2 | 22 | 0 | 4 | 29 |
| 1998 | 0 | 1 | 13 | 0 | 1 | 15 |
| 1999 | 0 | 2 | 14 | 0 | 4 | 20 |
| 2000 | 1 | 0 | 13 | 0 | 1 | 15 |
| 2001 | 4 | 4 | 15 | 0 | 3 | 26 |
| 2002 | 0 | 1 | 18 | 0 | 2 | 21 |
| 2003 | 1 | 0 | 14 | 0 | 2 | 17 |
| 2004 | 0 | 0 | 15 | 0 | 2 | 17 |
| 2005 | 0 | 0 | 12 | 0 | 3 | 15 |
| 2006 | 0 | 0 | 21 | 0 | 4 | 25 |
| 2007 | 0 | 0 | 20 | 0 | 4 | 24 |
| 2008 | 0 | 0 | 28 | 0 | 1 | 29 |
| 2009 | 2 | 0 | 50 | 0 | 2 | 54 |
| 2010 | 0 | 0 | 41 | 0 | 4 | 45 |
| 2011 | 2 | 1 | 67 | 0 | 3 | 73 |
| 2012 | 1 | 3 | 69 | 0 | 11 | 84 |
| 2013 | 0 | 1 | 91 | 0 | 5 | 97 |
| 2014 | 1 | 0 | 94 | 0 | 9 | 104 |
| 2015 | 0 | 1 | 114 | 0 | 9 | 124 |
| 2016 | 0 | 0 | 144 | 0 | 19 | 163 |
| 2017 | 0 | 0 | 163 | 0 | 8 | 171 |
| 2018 | 2 | 0 | 165 | 0 | 11 | 178 |
| 2019 | 0 | 0 | 179 | 0 | 4 | 183 |
| 2020 | 0 | 1 | 176 | 0 | 5 | 182 |
| 2021 | 0 | 1 | 144 | 0 | 7 | 152 |
| 2022 | 0 | 1 | 194 | 0 | 1 | 196 |
| 2023 | 2 | 0 | 133 | 0 | 9 | 144 |
| 2024 | 2 | 2 | 161 | 0 | 13 | 178 |
| 2025 | 0 | 0 | 1 | 0 | 1 | 2 |
| Total | 21 | 31 | 2407 | 0 | 184 | 2643 |