

*Excludes Observations that spanned multiple years
| B  | b  | t  | W  | w  | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 0 | 3 | 0 | 8 | 12 | 
| 1970 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 1971 | 0 | 0 | 2 | 0 | 0 | 2 | 
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 1973 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 1974 | 0 | 6 | 2 | 0 | 0 | 8 | 
| 1975 | 0 | 2 | 3 | 0 | 1 | 6 | 
| 1976 | 0 | 2 | 0 | 0 | 1 | 3 | 
| 1977 | 0 | 1 | 7 | 0 | 1 | 9 | 
| 1978 | 0 | 2 | 6 | 0 | 2 | 10 | 
| 1979 | 0 | 2 | 3 | 0 | 1 | 6 | 
| 1980 | 0 | 0 | 2 | 0 | 0 | 2 | 
| 1981 | 0 | 1 | 5 | 0 | 1 | 7 | 
| 1982 | 1 | 1 | 7 | 0 | 1 | 10 | 
| 1983 | 1 | 0 | 5 | 0 | 0 | 6 | 
| 1984 | 0 | 0 | 3 | 0 | 2 | 5 | 
| 1985 | 1 | 2 | 3 | 0 | 1 | 7 | 
| 1986 | 1 | 1 | 8 | 0 | 2 | 12 | 
| 1987 | 1 | 5 | 8 | 0 | 2 | 16 | 
| 1988 | 2 | 1 | 13 | 0 | 2 | 18 | 
| 1989 | 1 | 0 | 12 | 0 | 3 | 16 | 
| 1990 | 2 | 10 | 8 | 0 | 3 | 23 | 
| 1991 | 6 | 5 | 16 | 0 | 1 | 28 | 
| 1992 | 2 | 1 | 16 | 0 | 1 | 20 | 
| 1993 | 7 | 6 | 27 | 0 | 3 | 43 | 
| 1994 | 7 | 7 | 23 | 0 | 5 | 42 | 
| 1995 | 3 | 4 | 24 | 0 | 3 | 34 | 
| 1996 | 4 | 3 | 25 | 0 | 1 | 33 | 
| 1997 | 2 | 10 | 33 | 0 | 3 | 48 | 
| 1998 | 5 | 8 | 32 | 0 | 3 | 48 | 
| 1999 | 0 | 2 | 28 | 0 | 8 | 38 | 
| 2000 | 0 | 3 | 30 | 0 | 3 | 36 | 
| 2001 | 2 | 5 | 35 | 0 | 2 | 44 | 
| 2002 | 0 | 0 | 41 | 0 | 4 | 45 | 
| 2003 | 1 | 4 | 37 | 0 | 3 | 45 | 
| 2004 | 0 | 2 | 29 | 0 | 5 | 36 | 
| 2005 | 2 | 2 | 57 | 0 | 2 | 63 | 
| 2006 | 0 | 2 | 44 | 0 | 5 | 51 | 
| 2007 | 2 | 0 | 54 | 0 | 4 | 60 | 
| 2008 | 0 | 0 | 76 | 0 | 3 | 79 | 
| 2009 | 2 | 0 | 145 | 0 | 3 | 150 | 
| 2010 | 5 | 0 | 221 | 0 | 2 | 228 | 
| 2011 | 6 | 1 | 241 | 0 | 4 | 252 | 
| 2012 | 6 | 2 | 354 | 0 | 13 | 375 | 
| 2013 | 2 | 2 | 249 | 1 | 10 | 264 | 
| 2014 | 4 | 0 | 162 | 0 | 13 | 179 | 
| 2015 | 7 | 2 | 206 | 0 | 18 | 233 | 
| 2016 | 2 | 0 | 258 | 1 | 22 | 283 | 
| 2017 | 9 | 1 | 353 | 0 | 25 | 388 | 
| 2018 | 9 | 1 | 414 | 0 | 14 | 438 | 
| 2019 | 10 | 1 | 345 | 0 | 8 | 364 | 
| 2020 | 6 | 2 | 445 | 0 | 17 | 470 | 
| 2021 | 4 | 1 | 375 | 1 | 23 | 404 | 
| 2022 | 1 | 0 | 417 | 1 | 25 | 444 | 
| 2023 | 10 | 1 | 401 | 0 | 13 | 425 | 
| 2024 | 11 | 1 | 383 | 0 | 26 | 421 | 
| 2025 | 0 | 0 | 7 | 0 | 0 | 7 | 
| Total | 148 | 115 | 5703 | 4 | 326 | 6296 |