

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 3 | 2 | 0 | 40 | 45 |
| 1970 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1971 | 0 | 1 | 0 | 0 | 3 | 4 |
| 1972 | 0 | 0 | 0 | 0 | 3 | 3 |
| 1973 | 0 | 0 | 1 | 0 | 5 | 6 |
| 1974 | 0 | 0 | 0 | 0 | 2 | 2 |
| 1975 | 0 | 0 | 0 | 0 | 2 | 2 |
| 1976 | 0 | 2 | 0 | 0 | 4 | 6 |
| 1977 | 0 | 2 | 5 | 0 | 4 | 11 |
| 1978 | 0 | 3 | 0 | 0 | 2 | 5 |
| 1979 | 2 | 6 | 5 | 0 | 6 | 19 |
| 1980 | 0 | 1 | 3 | 0 | 3 | 7 |
| 1981 | 0 | 0 | 4 | 0 | 5 | 9 |
| 1982 | 0 | 1 | 3 | 0 | 2 | 6 |
| 1983 | 0 | 2 | 1 | 0 | 5 | 8 |
| 1984 | 0 | 1 | 0 | 0 | 3 | 4 |
| 1985 | 1 | 0 | 1 | 0 | 2 | 4 |
| 1986 | 3 | 1 | 0 | 0 | 3 | 7 |
| 1987 | 3 | 3 | 4 | 0 | 4 | 14 |
| 1988 | 1 | 3 | 5 | 0 | 8 | 17 |
| 1989 | 1 | 1 | 1 | 0 | 10 | 13 |
| 1990 | 2 | 23 | 6 | 0 | 7 | 38 |
| 1991 | 4 | 8 | 10 | 1 | 3 | 26 |
| 1992 | 1 | 5 | 6 | 0 | 6 | 18 |
| 1993 | 1 | 11 | 9 | 0 | 8 | 29 |
| 1994 | 4 | 37 | 13 | 0 | 5 | 59 |
| 1995 | 1 | 8 | 13 | 0 | 6 | 28 |
| 1996 | 2 | 12 | 20 | 0 | 11 | 45 |
| 1997 | 1 | 12 | 16 | 0 | 6 | 35 |
| 1998 | 1 | 50 | 18 | 0 | 9 | 78 |
| 1999 | 1 | 18 | 9 | 0 | 3 | 31 |
| 2000 | 2 | 46 | 15 | 1 | 7 | 71 |
| 2001 | 0 | 8 | 8 | 0 | 1 | 17 |
| 2002 | 0 | 12 | 18 | 0 | 1 | 31 |
| 2003 | 2 | 42 | 21 | 0 | 4 | 69 |
| 2004 | 1 | 64 | 6 | 0 | 1 | 72 |
| 2005 | 0 | 48 | 14 | 0 | 5 | 67 |
| 2006 | 0 | 39 | 16 | 0 | 5 | 60 |
| 2007 | 0 | 24 | 11 | 0 | 8 | 43 |
| 2008 | 0 | 52 | 12 | 0 | 16 | 80 |
| 2009 | 0 | 20 | 22 | 0 | 3 | 45 |
| 2010 | 0 | 24 | 17 | 0 | 5 | 46 |
| 2011 | 7 | 82 | 39 | 0 | 2 | 130 |
| 2012 | 6 | 35 | 32 | 0 | 9 | 82 |
| 2013 | 1 | 18 | 19 | 0 | 9 | 47 |
| 2014 | 3 | 189 | 27 | 0 | 13 | 232 |
| 2015 | 3 | 93 | 50 | 0 | 12 | 158 |
| 2016 | 0 | 57 | 69 | 0 | 22 | 148 |
| 2017 | 0 | 125 | 125 | 0 | 25 | 275 |
| 2018 | 0 | 120 | 67 | 0 | 16 | 203 |
| 2019 | 4 | 217 | 134 | 0 | 15 | 370 |
| 2020 | 0 | 84 | 68 | 0 | 32 | 184 |
| 2021 | 0 | 45 | 31 | 0 | 31 | 107 |
| 2022 | 0 | 56 | 53 | 0 | 26 | 135 |
| 2023 | 1 | 100 | 72 | 0 | 12 | 185 |
| 2024 | 2 | 266 | 141 | 0 | 18 | 427 |
| 2025 | 0 | 9 | 8 | 0 | 2 | 19 |
| 2026 | 0 | 0 | 5 | 0 | 3 | 8 |
| Total | 61 | 2089 | 1255 | 2 | 484 | 3891 |