

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 17 | 0 | 16 | 34 |
| 1970 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1971 | 0 | 0 | 2 | 0 | 4 | 6 |
| 1972 | 0 | 0 | 0 | 0 | 2 | 2 |
| 1973 | 0 | 0 | 1 | 0 | 3 | 4 |
| 1974 | 0 | 8 | 5 | 0 | 2 | 15 |
| 1975 | 0 | 7 | 3 | 0 | 5 | 15 |
| 1976 | 0 | 3 | 5 | 0 | 5 | 13 |
| 1977 | 0 | 6 | 10 | 0 | 2 | 18 |
| 1978 | 0 | 3 | 5 | 0 | 5 | 13 |
| 1979 | 2 | 2 | 13 | 0 | 4 | 21 |
| 1980 | 0 | 0 | 12 | 0 | 7 | 19 |
| 1981 | 0 | 2 | 15 | 0 | 4 | 21 |
| 1982 | 2 | 1 | 17 | 0 | 5 | 25 |
| 1983 | 0 | 1 | 14 | 0 | 3 | 18 |
| 1984 | 0 | 0 | 13 | 0 | 5 | 18 |
| 1985 | 1 | 6 | 8 | 0 | 7 | 22 |
| 1986 | 1 | 3 | 17 | 0 | 6 | 27 |
| 1987 | 2 | 4 | 16 | 1 | 7 | 30 |
| 1988 | 4 | 4 | 17 | 0 | 10 | 35 |
| 1989 | 3 | 10 | 12 | 0 | 9 | 34 |
| 1990 | 4 | 17 | 29 | 0 | 7 | 57 |
| 1991 | 9 | 11 | 43 | 0 | 4 | 67 |
| 1992 | 0 | 10 | 47 | 0 | 3 | 60 |
| 1993 | 11 | 9 | 69 | 0 | 8 | 97 |
| 1994 | 19 | 29 | 84 | 0 | 17 | 149 |
| 1995 | 8 | 15 | 64 | 0 | 8 | 95 |
| 1996 | 13 | 23 | 41 | 0 | 4 | 81 |
| 1997 | 2 | 30 | 75 | 0 | 16 | 123 |
| 1998 | 3 | 27 | 67 | 0 | 10 | 107 |
| 1999 | 0 | 13 | 55 | 1 | 14 | 83 |
| 2000 | 1 | 11 | 59 | 0 | 15 | 86 |
| 2001 | 4 | 9 | 72 | 0 | 14 | 99 |
| 2002 | 2 | 3 | 82 | 0 | 9 | 96 |
| 2003 | 3 | 5 | 95 | 0 | 8 | 111 |
| 2004 | 1 | 15 | 87 | 0 | 11 | 114 |
| 2005 | 3 | 10 | 133 | 0 | 15 | 161 |
| 2006 | 4 | 6 | 136 | 0 | 15 | 161 |
| 2007 | 2 | 3 | 127 | 0 | 14 | 146 |
| 2008 | 0 | 2 | 149 | 0 | 9 | 160 |
| 2009 | 7 | 3 | 261 | 0 | 17 | 288 |
| 2010 | 2 | 5 | 283 | 0 | 12 | 302 |
| 2011 | 0 | 7 | 334 | 0 | 19 | 360 |
| 2012 | 4 | 12 | 412 | 0 | 39 | 467 |
| 2013 | 4 | 8 | 524 | 0 | 23 | 559 |
| 2014 | 4 | 6 | 431 | 0 | 32 | 473 |
| 2015 | 9 | 5 | 541 | 0 | 38 | 593 |
| 2016 | 3 | 6 | 674 | 0 | 51 | 734 |
| 2017 | 10 | 4 | 944 | 0 | 43 | 1001 |
| 2018 | 7 | 11 | 1001 | 0 | 41 | 1060 |
| 2019 | 7 | 5 | 994 | 1 | 37 | 1044 |
| 2020 | 9 | 10 | 1204 | 0 | 50 | 1273 |
| 2021 | 10 | 8 | 1074 | 1 | 51 | 1144 |
| 2022 | 4 | 9 | 1265 | 0 | 65 | 1343 |
| 2023 | 15 | 7 | 1046 | 0 | 50 | 1118 |
| 2024 | 15 | 12 | 1118 | 0 | 89 | 1234 |
| 2025 | 0 | 1 | 19 | 0 | 1 | 21 |
| Total | 215 | 427 | 13844 | 4 | 972 | 15462 |