

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 3 | 5 | 0 | 0 | 9 |
| 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1973 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1974 | 0 | 2 | 1 | 0 | 0 | 3 |
| 1975 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1976 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1977 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1978 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1979 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1980 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1981 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1982 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1983 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1984 | 0 | 2 | 0 | 0 | 0 | 2 |
| 1985 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1986 | 0 | 2 | 8 | 0 | 0 | 10 |
| 1987 | 0 | 5 | 5 | 0 | 0 | 10 |
| 1988 | 1 | 0 | 9 | 0 | 0 | 10 |
| 1989 | 0 | 2 | 9 | 0 | 0 | 11 |
| 1990 | 0 | 14 | 6 | 0 | 0 | 20 |
| 1991 | 3 | 4 | 7 | 0 | 0 | 14 |
| 1992 | 2 | 21 | 4 | 0 | 0 | 27 |
| 1993 | 1 | 36 | 11 | 0 | 0 | 48 |
| 1994 | 0 | 76 | 15 | 0 | 0 | 91 |
| 1995 | 4 | 33 | 8 | 0 | 0 | 45 |
| 1996 | 2 | 55 | 6 | 0 | 0 | 63 |
| 1997 | 4 | 22 | 8 | 0 | 0 | 34 |
| 1998 | 1 | 49 | 3 | 0 | 0 | 53 |
| 1999 | 1 | 11 | 5 | 0 | 0 | 17 |
| 2000 | 1 | 40 | 13 | 0 | 0 | 54 |
| 2001 | 2 | 52 | 18 | 0 | 0 | 72 |
| 2002 | 1 | 35 | 10 | 0 | 0 | 46 |
| 2003 | 2 | 51 | 19 | 0 | 0 | 72 |
| 2004 | 1 | 72 | 128 | 0 | 0 | 201 |
| 2005 | 0 | 22 | 23 | 0 | 0 | 45 |
| 2006 | 13 | 21 | 42 | 0 | 0 | 76 |
| 2007 | 0 | 71 | 41 | 0 | 0 | 112 |
| 2008 | 0 | 39 | 38 | 0 | 0 | 77 |
| 2009 | 1 | 16 | 47 | 0 | 0 | 64 |
| 2010 | 3 | 35 | 81 | 0 | 0 | 119 |
| 2011 | 2 | 11 | 48 | 0 | 0 | 61 |
| 2012 | 1 | 90 | 40 | 0 | 0 | 131 |
| 2013 | 5 | 109 | 51 | 0 | 0 | 165 |
| 2014 | 3 | 158 | 58 | 0 | 0 | 219 |
| 2015 | 5 | 201 | 99 | 0 | 0 | 305 |
| 2016 | 5 | 215 | 88 | 0 | 0 | 308 |
| 2017 | 1 | 216 | 105 | 0 | 0 | 322 |
| 2018 | 5 | 227 | 129 | 0 | 0 | 361 |
| 2019 | 2 | 344 | 159 | 0 | 0 | 505 |
| 2020 | 2 | 501 | 184 | 0 | 0 | 687 |
| 2021 | 2 | 433 | 209 | 0 | 0 | 644 |
| 2022 | 4 | 422 | 232 | 0 | 0 | 658 |
| 2023 | 2 | 614 | 94 | 0 | 0 | 710 |
| 2024 | 7 | 603 | 147 | 0 | 0 | 757 |
| 2025 | 0 | 1 | 7 | 0 | 0 | 8 |
| Total | 90 | 4942 | 2229 | 0 | 0 | 7261 |