

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 2 | 1 | 18 | 0 | 24 | 45 |
| 1970 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1971 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1972 | 1 | 1 | 2 | 0 | 2 | 6 |
| 1973 | 1 | 1 | 4 | 0 | 0 | 6 |
| 1974 | 0 | 0 | 3 | 0 | 3 | 6 |
| 1975 | 0 | 0 | 2 | 0 | 3 | 5 |
| 1976 | 0 | 0 | 2 | 0 | 2 | 4 |
| 1977 | 0 | 1 | 9 | 0 | 4 | 14 |
| 1978 | 1 | 2 | 13 | 0 | 3 | 19 |
| 1979 | 2 | 2 | 6 | 0 | 3 | 13 |
| 1980 | 7 | 1 | 11 | 0 | 4 | 23 |
| 1981 | 6 | 0 | 7 | 0 | 10 | 23 |
| 1982 | 1 | 0 | 21 | 0 | 8 | 30 |
| 1983 | 4 | 2 | 10 | 0 | 10 | 26 |
| 1984 | 1 | 0 | 16 | 0 | 13 | 30 |
| 1985 | 9 | 1 | 8 | 1 | 12 | 31 |
| 1986 | 6 | 0 | 8 | 1 | 10 | 25 |
| 1987 | 10 | 2 | 10 | 1 | 9 | 32 |
| 1988 | 11 | 0 | 9 | 0 | 6 | 26 |
| 1989 | 8 | 1 | 23 | 0 | 11 | 43 |
| 1990 | 8 | 5 | 37 | 1 | 9 | 60 |
| 1991 | 11 | 11 | 57 | 0 | 8 | 87 |
| 1992 | 24 | 17 | 23 | 0 | 12 | 76 |
| 1993 | 12 | 7 | 39 | 0 | 14 | 72 |
| 1994 | 20 | 10 | 56 | 0 | 20 | 106 |
| 1995 | 18 | 7 | 57 | 0 | 11 | 93 |
| 1996 | 16 | 21 | 49 | 0 | 8 | 94 |
| 1997 | 12 | 11 | 39 | 0 | 13 | 75 |
| 1998 | 44 | 21 | 62 | 0 | 6 | 133 |
| 1999 | 42 | 12 | 50 | 5 | 12 | 121 |
| 2000 | 21 | 12 | 47 | 3 | 21 | 104 |
| 2001 | 19 | 22 | 54 | 4 | 16 | 115 |
| 2002 | 21 | 20 | 61 | 0 | 11 | 113 |
| 2003 | 42 | 48 | 51 | 3 | 13 | 157 |
| 2004 | 41 | 38 | 65 | 1 | 17 | 162 |
| 2005 | 33 | 42 | 63 | 0 | 22 | 160 |
| 2006 | 16 | 16 | 49 | 0 | 16 | 97 |
| 2007 | 14 | 15 | 66 | 0 | 15 | 110 |
| 2008 | 9 | 11 | 40 | 0 | 8 | 68 |
| 2009 | 8 | 7 | 57 | 0 | 13 | 85 |
| 2010 | 21 | 14 | 71 | 0 | 17 | 123 |
| 2011 | 22 | 9 | 85 | 0 | 19 | 135 |
| 2012 | 12 | 16 | 70 | 0 | 20 | 118 |
| 2013 | 9 | 15 | 109 | 0 | 26 | 159 |
| 2014 | 25 | 20 | 94 | 0 | 29 | 168 |
| 2015 | 32 | 9 | 125 | 0 | 37 | 203 |
| 2016 | 40 | 30 | 162 | 0 | 35 | 267 |
| 2017 | 13 | 8 | 176 | 0 | 52 | 249 |
| 2018 | 5 | 4 | 186 | 0 | 50 | 245 |
| 2019 | 2 | 5 | 156 | 0 | 55 | 218 |
| 2020 | 3 | 1 | 183 | 0 | 60 | 247 |
| 2021 | 3 | 10 | 151 | 0 | 46 | 210 |
| 2022 | 2 | 4 | 152 | 0 | 43 | 201 |
| 2023 | 6 | 10 | 151 | 0 | 33 | 200 |
| 2024 | 6 | 5 | 206 | 0 | 33 | 250 |
| 2025 | 0 | 1 | 2 | 0 | 1 | 4 |
| Total | 702 | 529 | 3287 | 20 | 960 | 5498 |