

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 2 | 0 | 7 | 10 |
| 1970 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 0 | 0 | 4 | 4 |
| 1974 | 0 | 1 | 1 | 0 | 1 | 3 |
| 1975 | 0 | 0 | 1 | 0 | 2 | 3 |
| 1976 | 0 | 1 | 1 | 0 | 3 | 5 |
| 1977 | 0 | 1 | 2 | 0 | 4 | 7 |
| 1978 | 0 | 1 | 3 | 0 | 3 | 7 |
| 1979 | 2 | 0 | 2 | 0 | 4 | 8 |
| 1980 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1981 | 0 | 0 | 4 | 0 | 5 | 9 |
| 1982 | 0 | 0 | 3 | 0 | 5 | 8 |
| 1983 | 0 | 0 | 4 | 0 | 1 | 5 |
| 1984 | 0 | 0 | 1 | 0 | 6 | 7 |
| 1985 | 0 | 0 | 3 | 0 | 4 | 7 |
| 1986 | 0 | 0 | 6 | 0 | 4 | 10 |
| 1987 | 0 | 0 | 6 | 0 | 6 | 12 |
| 1988 | 0 | 0 | 3 | 0 | 9 | 12 |
| 1989 | 0 | 1 | 4 | 0 | 8 | 13 |
| 1990 | 0 | 1 | 9 | 0 | 9 | 19 |
| 1991 | 2 | 2 | 17 | 0 | 4 | 25 |
| 1992 | 2 | 0 | 17 | 0 | 8 | 27 |
| 1993 | 1 | 3 | 21 | 0 | 10 | 35 |
| 1994 | 1 | 2 | 24 | 0 | 12 | 39 |
| 1995 | 4 | 2 | 24 | 0 | 9 | 39 |
| 1996 | 2 | 2 | 15 | 0 | 7 | 26 |
| 1997 | 2 | 0 | 15 | 0 | 12 | 29 |
| 1998 | 3 | 3 | 27 | 0 | 11 | 44 |
| 1999 | 1 | 0 | 15 | 0 | 9 | 25 |
| 2000 | 0 | 2 | 21 | 0 | 11 | 34 |
| 2001 | 2 | 1 | 38 | 0 | 13 | 54 |
| 2002 | 1 | 2 | 37 | 0 | 4 | 44 |
| 2003 | 4 | 3 | 36 | 0 | 10 | 53 |
| 2004 | 3 | 2 | 19 | 0 | 11 | 35 |
| 2005 | 2 | 3 | 32 | 0 | 15 | 52 |
| 2006 | 2 | 3 | 37 | 0 | 11 | 53 |
| 2007 | 2 | 0 | 33 | 0 | 13 | 48 |
| 2008 | 2 | 0 | 62 | 2 | 8 | 74 |
| 2009 | 2 | 0 | 47 | 0 | 17 | 66 |
| 2010 | 4 | 1 | 59 | 0 | 19 | 83 |
| 2011 | 1 | 1 | 71 | 0 | 13 | 86 |
| 2012 | 1 | 2 | 133 | 0 | 42 | 178 |
| 2013 | 4 | 6 | 196 | 0 | 29 | 235 |
| 2014 | 4 | 9 | 200 | 0 | 36 | 249 |
| 2015 | 6 | 3 | 296 | 1 | 48 | 354 |
| 2016 | 5 | 14 | 373 | 0 | 74 | 466 |
| 2017 | 9 | 12 | 451 | 0 | 76 | 548 |
| 2018 | 3 | 8 | 486 | 0 | 83 | 580 |
| 2019 | 7 | 13 | 469 | 2 | 72 | 563 |
| 2020 | 18 | 5 | 613 | 1 | 91 | 728 |
| 2021 | 24 | 2 | 528 | 1 | 57 | 612 |
| 2022 | 24 | 4 | 659 | 0 | 83 | 770 |
| 2023 | 21 | 9 | 472 | 0 | 79 | 581 |
| 2024 | 29 | 10 | 624 | 0 | 91 | 754 |
| 2025 | 0 | 0 | 32 | 0 | 1 | 33 |
| Total | 201 | 135 | 6257 | 7 | 1175 | 7775 |