

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1970 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1974 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1975 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1976 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1977 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1978 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1979 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1980 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1981 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1982 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1983 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1984 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1985 | 1 | 0 | 0 | 0 | 0 | 1 |
| 1986 | 0 | 3 | 2 | 0 | 0 | 5 |
| 1987 | 0 | 2 | 2 | 0 | 0 | 4 |
| 1988 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1989 | 0 | 6 | 2 | 0 | 0 | 8 |
| 1990 | 0 | 4 | 1 | 0 | 0 | 5 |
| 1991 | 2 | 2 | 5 | 0 | 0 | 9 |
| 1992 | 0 | 7 | 1 | 0 | 0 | 8 |
| 1993 | 0 | 28 | 4 | 0 | 0 | 32 |
| 1994 | 1 | 76 | 13 | 0 | 0 | 90 |
| 1995 | 0 | 19 | 2 | 0 | 0 | 21 |
| 1996 | 1 | 31 | 6 | 0 | 0 | 38 |
| 1997 | 0 | 51 | 3 | 0 | 0 | 54 |
| 1998 | 1 | 39 | 2 | 0 | 0 | 42 |
| 1999 | 0 | 16 | 1 | 0 | 0 | 17 |
| 2000 | 0 | 54 | 6 | 0 | 0 | 60 |
| 2001 | 1 | 12 | 3 | 0 | 0 | 16 |
| 2002 | 2 | 60 | 8 | 0 | 0 | 70 |
| 2003 | 0 | 36 | 4 | 0 | 0 | 40 |
| 2004 | 0 | 71 | 6 | 0 | 0 | 77 |
| 2005 | 0 | 20 | 4 | 0 | 0 | 24 |
| 2006 | 0 | 35 | 4 | 0 | 0 | 39 |
| 2007 | 0 | 30 | 19 | 0 | 0 | 49 |
| 2008 | 2 | 59 | 13 | 0 | 0 | 74 |
| 2009 | 1 | 14 | 24 | 0 | 0 | 39 |
| 2010 | 1 | 20 | 22 | 0 | 0 | 43 |
| 2011 | 1 | 9 | 25 | 0 | 0 | 35 |
| 2012 | 4 | 49 | 18 | 0 | 0 | 71 |
| 2013 | 5 | 59 | 42 | 0 | 0 | 106 |
| 2014 | 5 | 60 | 48 | 0 | 0 | 113 |
| 2015 | 5 | 96 | 34 | 0 | 0 | 135 |
| 2016 | 2 | 84 | 55 | 0 | 0 | 141 |
| 2017 | 4 | 108 | 79 | 0 | 0 | 191 |
| 2018 | 7 | 124 | 90 | 0 | 0 | 221 |
| 2019 | 8 | 167 | 129 | 0 | 0 | 304 |
| 2020 | 8 | 214 | 136 | 0 | 0 | 358 |
| 2021 | 4 | 157 | 149 | 0 | 0 | 310 |
| 2022 | 9 | 192 | 173 | 0 | 0 | 374 |
| 2023 | 6 | 355 | 102 | 0 | 0 | 463 |
| 2024 | 12 | 371 | 108 | 0 | 0 | 491 |
| 2025 | 0 | 0 | 2 | 0 | 0 | 2 |
| Total | 93 | 2740 | 1356 | 0 | 0 | 4189 |