

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 8 | 0 | 13 | 0 | 2 | 23 |
| 1970 | 0 | 4 | 3 | 0 | 0 | 7 |
| 1971 | 0 | 9 | 11 | 0 | 1 | 21 |
| 1972 | 0 | 6 | 26 | 0 | 0 | 32 |
| 1973 | 0 | 4 | 13 | 0 | 0 | 17 |
| 1974 | 2 | 13 | 10 | 0 | 0 | 25 |
| 1975 | 3 | 1 | 2 | 0 | 0 | 6 |
| 1976 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1977 | 0 | 0 | 4 | 0 | 1 | 5 |
| 1978 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1979 | 0 | 1 | 5 | 0 | 1 | 7 |
| 1980 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1981 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1982 | 0 | 0 | 1 | 0 | 2 | 3 |
| 1983 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1984 | 0 | 5 | 7 | 0 | 1 | 13 |
| 1985 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1986 | 0 | 0 | 5 | 0 | 1 | 6 |
| 1987 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1988 | 1 | 0 | 12 | 0 | 1 | 14 |
| 1989 | 1 | 0 | 6 | 0 | 1 | 8 |
| 1990 | 1 | 0 | 6 | 0 | 1 | 8 |
| 1991 | 2 | 0 | 4 | 0 | 3 | 9 |
| 1992 | 3 | 2 | 10 | 0 | 0 | 15 |
| 1993 | 2 | 0 | 16 | 0 | 0 | 18 |
| 1994 | 3 | 0 | 15 | 0 | 1 | 19 |
| 1995 | 2 | 3 | 23 | 0 | 0 | 28 |
| 1996 | 3 | 1 | 20 | 0 | 0 | 24 |
| 1997 | 6 | 0 | 12 | 0 | 1 | 19 |
| 1998 | 10 | 2 | 24 | 0 | 0 | 36 |
| 1999 | 3 | 0 | 24 | 0 | 0 | 27 |
| 2000 | 3 | 0 | 23 | 0 | 0 | 26 |
| 2001 | 3 | 0 | 28 | 0 | 1 | 32 |
| 2002 | 2 | 0 | 24 | 0 | 0 | 26 |
| 2003 | 4 | 0 | 31 | 0 | 3 | 38 |
| 2004 | 1 | 0 | 20 | 0 | 1 | 22 |
| 2005 | 2 | 2 | 18 | 0 | 1 | 23 |
| 2006 | 5 | 0 | 28 | 0 | 3 | 36 |
| 2007 | 2 | 2 | 22 | 0 | 0 | 26 |
| 2008 | 3 | 1 | 11 | 0 | 1 | 16 |
| 2009 | 0 | 1 | 28 | 0 | 0 | 29 |
| 2010 | 4 | 2 | 51 | 0 | 1 | 58 |
| 2011 | 2 | 0 | 18 | 0 | 1 | 21 |
| 2012 | 4 | 0 | 27 | 0 | 0 | 31 |
| 2013 | 9 | 0 | 47 | 0 | 3 | 59 |
| 2014 | 7 | 0 | 34 | 0 | 2 | 43 |
| 2015 | 8 | 2 | 74 | 0 | 2 | 86 |
| 2016 | 13 | 1 | 72 | 0 | 3 | 89 |
| 2017 | 12 | 3 | 91 | 0 | 4 | 110 |
| 2018 | 13 | 4 | 71 | 0 | 2 | 90 |
| 2019 | 11 | 1 | 69 | 0 | 2 | 83 |
| 2020 | 11 | 6 | 84 | 0 | 1 | 102 |
| 2021 | 9 | 3 | 86 | 0 | 2 | 100 |
| 2022 | 13 | 1 | 106 | 0 | 0 | 120 |
| 2023 | 6 | 1 | 134 | 0 | 8 | 149 |
| 2024 | 10 | 1 | 117 | 0 | 3 | 131 |
| 2025 | 0 | 0 | 11 | 0 | 0 | 11 |
| Total | 207 | 82 | 1606 | 0 | 64 | 1959 |