

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 0 | 10 | 0 | 15 | 25 |
| 1970 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1973 | 0 | 0 | 5 | 0 | 1 | 6 |
| 1974 | 0 | 0 | 1 | 0 | 2 | 3 |
| 1975 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1976 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1977 | 0 | 0 | 6 | 0 | 4 | 10 |
| 1978 | 0 | 0 | 3 | 0 | 4 | 7 |
| 1979 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1980 | 0 | 0 | 4 | 0 | 5 | 9 |
| 1981 | 1 | 0 | 7 | 0 | 3 | 11 |
| 1982 | 0 | 0 | 5 | 0 | 6 | 11 |
| 1983 | 0 | 0 | 2 | 0 | 2 | 4 |
| 1984 | 1 | 0 | 5 | 0 | 6 | 12 |
| 1985 | 0 | 1 | 4 | 0 | 4 | 9 |
| 1986 | 0 | 1 | 4 | 0 | 3 | 8 |
| 1987 | 0 | 0 | 7 | 0 | 6 | 13 |
| 1988 | 0 | 1 | 11 | 0 | 8 | 20 |
| 1989 | 1 | 0 | 15 | 0 | 5 | 21 |
| 1990 | 2 | 6 | 9 | 0 | 4 | 21 |
| 1991 | 3 | 8 | 19 | 0 | 1 | 31 |
| 1992 | 2 | 2 | 16 | 0 | 2 | 22 |
| 1993 | 0 | 2 | 33 | 0 | 6 | 41 |
| 1994 | 4 | 4 | 48 | 0 | 5 | 61 |
| 1995 | 5 | 4 | 40 | 0 | 5 | 54 |
| 1996 | 2 | 1 | 30 | 0 | 6 | 39 |
| 1997 | 1 | 1 | 23 | 0 | 7 | 32 |
| 1998 | 1 | 1 | 48 | 0 | 7 | 57 |
| 1999 | 3 | 0 | 21 | 0 | 10 | 34 |
| 2000 | 3 | 0 | 38 | 0 | 6 | 47 |
| 2001 | 2 | 1 | 30 | 0 | 7 | 40 |
| 2002 | 2 | 1 | 44 | 0 | 9 | 56 |
| 2003 | 2 | 4 | 36 | 0 | 5 | 47 |
| 2004 | 1 | 1 | 40 | 0 | 6 | 48 |
| 2005 | 2 | 5 | 44 | 0 | 16 | 67 |
| 2006 | 3 | 3 | 50 | 0 | 13 | 69 |
| 2007 | 2 | 3 | 69 | 2 | 13 | 89 |
| 2008 | 0 | 1 | 60 | 1 | 14 | 76 |
| 2009 | 1 | 2 | 69 | 0 | 11 | 83 |
| 2010 | 0 | 1 | 84 | 0 | 10 | 95 |
| 2011 | 3 | 4 | 119 | 0 | 22 | 148 |
| 2012 | 2 | 1 | 88 | 0 | 21 | 112 |
| 2013 | 5 | 1 | 162 | 0 | 20 | 188 |
| 2014 | 3 | 22 | 162 | 0 | 24 | 211 |
| 2015 | 4 | 5 | 236 | 0 | 42 | 287 |
| 2016 | 7 | 3 | 323 | 0 | 50 | 383 |
| 2017 | 10 | 4 | 368 | 0 | 60 | 442 |
| 2018 | 10 | 5 | 370 | 0 | 44 | 429 |
| 2019 | 8 | 11 | 409 | 0 | 31 | 459 |
| 2020 | 7 | 7 | 482 | 0 | 35 | 531 |
| 2021 | 2 | 8 | 472 | 0 | 40 | 522 |
| 2022 | 10 | 3 | 498 | 0 | 55 | 566 |
| 2023 | 14 | 7 | 510 | 0 | 48 | 579 |
| 2024 | 10 | 5 | 553 | 0 | 53 | 621 |
| 2025 | 1 | 1 | 13 | 0 | 0 | 15 |
| Total | 140 | 141 | 5718 | 3 | 789 | 6791 |