

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 5 | 8 | 0 | 0 | 13 |
| 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1971 | 0 | 8 | 0 | 0 | 0 | 8 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1974 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1975 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1976 | 0 | 2 | 0 | 0 | 0 | 2 |
| 1977 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1979 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1980 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1981 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1982 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1983 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1984 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1985 | 1 | 1 | 1 | 0 | 0 | 3 |
| 1986 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1987 | 0 | 3 | 2 | 0 | 0 | 5 |
| 1988 | 0 | 4 | 3 | 0 | 0 | 7 |
| 1989 | 0 | 1 | 3 | 0 | 0 | 4 |
| 1990 | 0 | 11 | 2 | 0 | 0 | 13 |
| 1991 | 2 | 7 | 3 | 0 | 0 | 12 |
| 1992 | 1 | 29 | 1 | 0 | 0 | 31 |
| 1993 | 0 | 39 | 3 | 0 | 0 | 42 |
| 1994 | 0 | 45 | 7 | 0 | 0 | 52 |
| 1995 | 0 | 31 | 10 | 0 | 0 | 41 |
| 1996 | 0 | 34 | 1 | 0 | 0 | 35 |
| 1997 | 0 | 33 | 9 | 0 | 0 | 42 |
| 1998 | 0 | 41 | 5 | 0 | 0 | 46 |
| 1999 | 0 | 17 | 7 | 0 | 0 | 24 |
| 2000 | 1 | 41 | 9 | 0 | 0 | 51 |
| 2001 | 0 | 19 | 10 | 0 | 0 | 29 |
| 2002 | 0 | 37 | 10 | 0 | 0 | 47 |
| 2003 | 1 | 49 | 12 | 0 | 0 | 62 |
| 2004 | 0 | 60 | 7 | 0 | 0 | 67 |
| 2005 | 0 | 73 | 7 | 0 | 0 | 80 |
| 2006 | 0 | 52 | 7 | 0 | 0 | 59 |
| 2007 | 0 | 61 | 28 | 0 | 0 | 89 |
| 2008 | 0 | 51 | 16 | 0 | 0 | 67 |
| 2009 | 2 | 10 | 15 | 0 | 0 | 27 |
| 2010 | 0 | 27 | 39 | 0 | 0 | 66 |
| 2011 | 0 | 18 | 34 | 0 | 0 | 52 |
| 2012 | 1 | 55 | 44 | 0 | 0 | 100 |
| 2013 | 0 | 49 | 31 | 0 | 0 | 80 |
| 2014 | 0 | 65 | 36 | 0 | 0 | 101 |
| 2015 | 0 | 80 | 51 | 0 | 0 | 131 |
| 2016 | 1 | 86 | 52 | 0 | 0 | 139 |
| 2017 | 0 | 99 | 65 | 0 | 0 | 164 |
| 2018 | 0 | 153 | 66 | 0 | 0 | 219 |
| 2019 | 3 | 122 | 74 | 0 | 0 | 199 |
| 2020 | 1 | 174 | 117 | 0 | 0 | 292 |
| 2021 | 1 | 214 | 103 | 0 | 0 | 318 |
| 2022 | 1 | 247 | 145 | 0 | 0 | 393 |
| 2023 | 4 | 281 | 65 | 0 | 0 | 350 |
| 2024 | 0 | 305 | 69 | 0 | 0 | 374 |
| 2025 | 0 | 0 | 2 | 0 | 0 | 2 |
| Total | 20 | 2743 | 1186 | 0 | 0 | 3949 |