

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 2 | 2 | 6 | 0 | 1 | 11 |
| 1970 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1971 | 0 | 3 | 0 | 0 | 0 | 3 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 5 | 0 | 0 | 0 | 5 |
| 1974 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1975 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1976 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1977 | 0 | 1 | 6 | 0 | 0 | 7 |
| 1978 | 0 | 6 | 2 | 0 | 0 | 8 |
| 1979 | 1 | 7 | 1 | 0 | 0 | 9 |
| 1980 | 1 | 5 | 4 | 0 | 0 | 10 |
| 1981 | 1 | 3 | 4 | 0 | 0 | 8 |
| 1982 | 0 | 4 | 1 | 0 | 0 | 5 |
| 1983 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1984 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1985 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1986 | 0 | 5 | 3 | 0 | 0 | 8 |
| 1987 | 0 | 1 | 6 | 0 | 0 | 7 |
| 1988 | 0 | 4 | 1 | 0 | 0 | 5 |
| 1989 | 0 | 3 | 8 | 0 | 0 | 11 |
| 1990 | 0 | 12 | 3 | 0 | 0 | 15 |
| 1991 | 6 | 6 | 4 | 0 | 0 | 16 |
| 1992 | 2 | 10 | 7 | 0 | 1 | 20 |
| 1993 | 0 | 16 | 13 | 0 | 0 | 29 |
| 1994 | 4 | 33 | 19 | 0 | 0 | 56 |
| 1995 | 10 | 19 | 17 | 0 | 0 | 46 |
| 1996 | 5 | 22 | 28 | 0 | 0 | 55 |
| 1997 | 28 | 70 | 23 | 0 | 0 | 121 |
| 1998 | 6 | 59 | 15 | 0 | 0 | 80 |
| 1999 | 4 | 46 | 30 | 0 | 0 | 80 |
| 2000 | 37 | 41 | 25 | 0 | 0 | 103 |
| 2001 | 6 | 49 | 15 | 0 | 1 | 71 |
| 2002 | 2 | 45 | 33 | 0 | 0 | 80 |
| 2003 | 5 | 40 | 15 | 0 | 0 | 60 |
| 2004 | 4 | 57 | 33 | 0 | 0 | 94 |
| 2005 | 4 | 45 | 29 | 0 | 0 | 78 |
| 2006 | 2 | 44 | 33 | 0 | 0 | 79 |
| 2007 | 1 | 40 | 31 | 0 | 0 | 72 |
| 2008 | 1 | 28 | 33 | 0 | 0 | 62 |
| 2009 | 4 | 33 | 51 | 0 | 0 | 88 |
| 2010 | 1 | 23 | 50 | 0 | 0 | 74 |
| 2011 | 1 | 23 | 45 | 0 | 0 | 69 |
| 2012 | 0 | 29 | 40 | 0 | 0 | 69 |
| 2013 | 1 | 70 | 61 | 0 | 0 | 132 |
| 2014 | 2 | 110 | 38 | 0 | 0 | 150 |
| 2015 | 1 | 137 | 69 | 0 | 0 | 207 |
| 2016 | 5 | 133 | 89 | 0 | 0 | 227 |
| 2017 | 2 | 170 | 116 | 0 | 0 | 288 |
| 2018 | 3 | 152 | 76 | 0 | 0 | 231 |
| 2019 | 13 | 150 | 83 | 0 | 0 | 246 |
| 2020 | 4 | 236 | 99 | 0 | 0 | 339 |
| 2021 | 6 | 188 | 98 | 0 | 0 | 292 |
| 2022 | 7 | 271 | 138 | 0 | 0 | 416 |
| 2023 | 9 | 303 | 116 | 0 | 0 | 428 |
| 2024 | 4 | 330 | 135 | 0 | 0 | 469 |
| 2025 | 0 | 24 | 2 | 0 | 0 | 26 |
| 2026 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 195 | 3116 | 1775 | 0 | 3 | 5089 |