

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 0 | 18 | 0 | 0 | 18 |
| 1970 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1971 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1974 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1975 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1976 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1977 | 1 | 0 | 3 | 0 | 0 | 4 |
| 1978 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1979 | 0 | 0 | 9 | 0 | 0 | 9 |
| 1980 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1981 | 0 | 0 | 5 | 0 | 1 | 6 |
| 1982 | 0 | 0 | 7 | 0 | 0 | 7 |
| 1983 | 0 | 0 | 6 | 0 | 1 | 7 |
| 1984 | 0 | 0 | 3 | 0 | 1 | 4 |
| 1985 | 2 | 0 | 4 | 0 | 0 | 6 |
| 1986 | 1 | 0 | 12 | 0 | 2 | 15 |
| 1987 | 1 | 0 | 12 | 0 | 1 | 14 |
| 1988 | 1 | 1 | 10 | 0 | 1 | 13 |
| 1989 | 2 | 1 | 13 | 0 | 4 | 20 |
| 1990 | 5 | 3 | 17 | 0 | 2 | 27 |
| 1991 | 2 | 2 | 62 | 0 | 0 | 66 |
| 1992 | 1 | 0 | 21 | 0 | 0 | 22 |
| 1993 | 3 | 3 | 33 | 0 | 1 | 40 |
| 1994 | 6 | 6 | 40 | 0 | 3 | 55 |
| 1995 | 4 | 6 | 54 | 0 | 2 | 66 |
| 1996 | 2 | 2 | 55 | 0 | 0 | 59 |
| 1997 | 1 | 3 | 56 | 0 | 5 | 65 |
| 1998 | 0 | 6 | 34 | 0 | 5 | 45 |
| 1999 | 1 | 2 | 40 | 0 | 8 | 51 |
| 2000 | 5 | 3 | 27 | 0 | 3 | 38 |
| 2001 | 6 | 2 | 35 | 0 | 3 | 46 |
| 2002 | 1 | 1 | 56 | 0 | 0 | 58 |
| 2003 | 1 | 7 | 63 | 0 | 4 | 75 |
| 2004 | 0 | 3 | 62 | 0 | 2 | 67 |
| 2005 | 1 | 2 | 73 | 0 | 4 | 80 |
| 2006 | 2 | 1 | 63 | 0 | 5 | 71 |
| 2007 | 2 | 0 | 80 | 0 | 3 | 85 |
| 2008 | 0 | 1 | 94 | 0 | 1 | 96 |
| 2009 | 4 | 0 | 139 | 0 | 2 | 145 |
| 2010 | 6 | 4 | 136 | 0 | 1 | 147 |
| 2011 | 6 | 1 | 211 | 0 | 9 | 227 |
| 2012 | 7 | 0 | 181 | 0 | 7 | 195 |
| 2013 | 5 | 0 | 202 | 0 | 7 | 214 |
| 2014 | 9 | 4 | 189 | 0 | 3 | 205 |
| 2015 | 9 | 2 | 190 | 0 | 5 | 206 |
| 2016 | 14 | 0 | 258 | 0 | 9 | 281 |
| 2017 | 11 | 2 | 329 | 0 | 5 | 347 |
| 2018 | 12 | 1 | 279 | 0 | 3 | 295 |
| 2019 | 12 | 2 | 326 | 0 | 4 | 344 |
| 2020 | 5 | 2 | 316 | 0 | 6 | 329 |
| 2021 | 1 | 3 | 324 | 0 | 7 | 335 |
| 2022 | 5 | 0 | 431 | 0 | 2 | 438 |
| 2023 | 7 | 3 | 359 | 0 | 2 | 371 |
| 2024 | 9 | 4 | 449 | 0 | 12 | 474 |
| 2025 | 0 | 1 | 20 | 0 | 0 | 21 |
| Total | 173 | 84 | 5428 | 0 | 148 | 5833 |