

*Excludes Observations that spanned multiple years
B![]()  |     b![]()  |     t![]()  |     W![]()  |     w![]()  |     ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 8 | 4 | 0 | 0 | 12 | 
| 1970 | 0 | 1 | 1 | 0 | 0 | 2 | 
| 1971 | 0 | 5 | 1 | 0 | 0 | 6 | 
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 1973 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1974 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1975 | 0 | 1 | 1 | 0 | 0 | 2 | 
| 1976 | 0 | 1 | 3 | 0 | 0 | 4 | 
| 1977 | 0 | 0 | 2 | 0 | 0 | 2 | 
| 1978 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1979 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 1980 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1981 | 0 | 0 | 2 | 0 | 0 | 2 | 
| 1982 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1983 | 0 | 0 | 1 | 0 | 1 | 2 | 
| 1984 | 0 | 2 | 0 | 0 | 0 | 2 | 
| 1985 | 0 | 0 | 1 | 0 | 0 | 1 | 
| 1986 | 0 | 0 | 5 | 0 | 0 | 5 | 
| 1987 | 0 | 2 | 8 | 0 | 0 | 10 | 
| 1988 | 0 | 7 | 8 | 0 | 0 | 15 | 
| 1989 | 0 | 7 | 2 | 0 | 0 | 9 | 
| 1990 | 0 | 28 | 7 | 0 | 0 | 35 | 
| 1991 | 1 | 23 | 6 | 0 | 0 | 30 | 
| 1992 | 3 | 24 | 7 | 0 | 0 | 34 | 
| 1993 | 3 | 66 | 8 | 0 | 0 | 77 | 
| 1994 | 3 | 112 | 19 | 0 | 0 | 134 | 
| 1995 | 4 | 85 | 11 | 0 | 0 | 100 | 
| 1996 | 2 | 81 | 3 | 0 | 1 | 87 | 
| 1997 | 3 | 78 | 19 | 0 | 0 | 100 | 
| 1998 | 2 | 78 | 7 | 0 | 0 | 87 | 
| 1999 | 1 | 40 | 6 | 0 | 0 | 47 | 
| 2000 | 2 | 114 | 6 | 0 | 0 | 122 | 
| 2001 | 1 | 82 | 17 | 0 | 0 | 100 | 
| 2002 | 0 | 94 | 25 | 0 | 0 | 119 | 
| 2003 | 3 | 130 | 30 | 0 | 0 | 163 | 
| 2004 | 3 | 192 | 24 | 0 | 0 | 219 | 
| 2005 | 1 | 106 | 40 | 0 | 0 | 147 | 
| 2006 | 6 | 150 | 47 | 0 | 0 | 203 | 
| 2007 | 3 | 197 | 80 | 0 | 0 | 280 | 
| 2008 | 2 | 169 | 59 | 0 | 0 | 230 | 
| 2009 | 2 | 58 | 72 | 0 | 0 | 132 | 
| 2010 | 5 | 83 | 117 | 0 | 0 | 205 | 
| 2011 | 0 | 65 | 96 | 0 | 0 | 161 | 
| 2012 | 10 | 214 | 65 | 0 | 0 | 289 | 
| 2013 | 6 | 282 | 84 | 0 | 0 | 372 | 
| 2014 | 3 | 354 | 95 | 0 | 0 | 452 | 
| 2015 | 9 | 383 | 81 | 0 | 0 | 473 | 
| 2016 | 6 | 362 | 106 | 0 | 0 | 474 | 
| 2017 | 7 | 418 | 116 | 0 | 0 | 541 | 
| 2018 | 8 | 472 | 151 | 0 | 0 | 631 | 
| 2019 | 14 | 543 | 161 | 0 | 0 | 718 | 
| 2020 | 1 | 717 | 188 | 0 | 0 | 906 | 
| 2021 | 3 | 697 | 215 | 0 | 0 | 915 | 
| 2022 | 7 | 774 | 235 | 0 | 0 | 1016 | 
| 2023 | 11 | 960 | 92 | 0 | 0 | 1063 | 
| 2024 | 12 | 1016 | 98 | 0 | 0 | 1126 | 
| 2025 | 0 | 1 | 9 | 0 | 0 | 10 | 
| Total | 147 | 9282 | 2446 | 0 | 2 | 11877 |