

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 7 | 0 | 21 | 29 |
| 1970 | 0 | 0 | 2 | 0 | 1 | 3 |
| 1971 | 0 | 0 | 1 | 0 | 4 | 5 |
| 1972 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1973 | 0 | 0 | 3 | 0 | 3 | 6 |
| 1974 | 0 | 2 | 4 | 0 | 1 | 7 |
| 1975 | 0 | 3 | 7 | 0 | 5 | 15 |
| 1976 | 0 | 2 | 3 | 0 | 3 | 8 |
| 1977 | 0 | 3 | 10 | 0 | 5 | 18 |
| 1978 | 0 | 4 | 3 | 0 | 4 | 11 |
| 1979 | 3 | 6 | 13 | 0 | 5 | 27 |
| 1980 | 0 | 1 | 11 | 0 | 5 | 17 |
| 1981 | 0 | 0 | 16 | 0 | 7 | 23 |
| 1982 | 2 | 1 | 18 | 0 | 7 | 28 |
| 1983 | 0 | 2 | 13 | 0 | 0 | 15 |
| 1984 | 0 | 0 | 5 | 0 | 7 | 12 |
| 1985 | 0 | 3 | 6 | 0 | 4 | 13 |
| 1986 | 0 | 2 | 11 | 0 | 5 | 18 |
| 1987 | 0 | 6 | 14 | 0 | 13 | 33 |
| 1988 | 0 | 4 | 15 | 0 | 11 | 30 |
| 1989 | 0 | 6 | 12 | 1 | 8 | 27 |
| 1990 | 3 | 16 | 33 | 0 | 5 | 57 |
| 1991 | 12 | 10 | 29 | 0 | 6 | 57 |
| 1992 | 0 | 9 | 28 | 0 | 9 | 46 |
| 1993 | 9 | 11 | 37 | 0 | 12 | 69 |
| 1994 | 12 | 23 | 55 | 0 | 13 | 103 |
| 1995 | 4 | 6 | 44 | 0 | 7 | 61 |
| 1996 | 12 | 23 | 40 | 0 | 5 | 80 |
| 1997 | 7 | 21 | 59 | 0 | 13 | 100 |
| 1998 | 2 | 10 | 51 | 0 | 8 | 71 |
| 1999 | 3 | 8 | 40 | 0 | 9 | 60 |
| 2000 | 3 | 4 | 44 | 0 | 11 | 62 |
| 2001 | 8 | 5 | 49 | 0 | 13 | 75 |
| 2002 | 2 | 3 | 76 | 0 | 10 | 91 |
| 2003 | 3 | 3 | 70 | 0 | 10 | 86 |
| 2004 | 4 | 6 | 52 | 0 | 10 | 72 |
| 2005 | 2 | 0 | 78 | 0 | 16 | 96 |
| 2006 | 1 | 2 | 69 | 0 | 9 | 81 |
| 2007 | 1 | 6 | 79 | 0 | 11 | 97 |
| 2008 | 0 | 0 | 107 | 0 | 7 | 114 |
| 2009 | 4 | 2 | 131 | 0 | 13 | 150 |
| 2010 | 4 | 3 | 197 | 0 | 8 | 212 |
| 2011 | 3 | 7 | 230 | 1 | 14 | 255 |
| 2012 | 0 | 3 | 243 | 0 | 28 | 274 |
| 2013 | 2 | 3 | 328 | 0 | 19 | 352 |
| 2014 | 6 | 8 | 329 | 0 | 23 | 366 |
| 2015 | 3 | 0 | 428 | 0 | 32 | 463 |
| 2016 | 2 | 1 | 444 | 0 | 37 | 484 |
| 2017 | 9 | 3 | 705 | 0 | 31 | 748 |
| 2018 | 12 | 3 | 774 | 1 | 24 | 814 |
| 2019 | 4 | 2 | 621 | 1 | 15 | 643 |
| 2020 | 9 | 2 | 803 | 0 | 30 | 844 |
| 2021 | 2 | 1 | 592 | 0 | 28 | 623 |
| 2022 | 2 | 2 | 648 | 1 | 40 | 693 |
| 2023 | 2 | 9 | 740 | 0 | 32 | 783 |
| 2024 | 4 | 7 | 654 | 0 | 72 | 737 |
| 2025 | 0 | 0 | 14 | 0 | 0 | 14 |
| Total | 162 | 267 | 9096 | 5 | 750 | 10280 |