

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 2 | 6 | 0 | 0 | 9 |
| 1970 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1971 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1974 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1975 | 0 | 2 | 0 | 0 | 0 | 2 |
| 1976 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1977 | 0 | 2 | 5 | 0 | 0 | 7 |
| 1978 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1979 | 0 | 3 | 5 | 0 | 0 | 8 |
| 1980 | 1 | 3 | 6 | 0 | 0 | 10 |
| 1981 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1982 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1983 | 2 | 0 | 3 | 0 | 0 | 5 |
| 1984 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1985 | 0 | 1 | 3 | 0 | 0 | 4 |
| 1986 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1987 | 0 | 2 | 5 | 0 | 0 | 7 |
| 1988 | 0 | 8 | 3 | 0 | 0 | 11 |
| 1989 | 1 | 7 | 7 | 0 | 0 | 15 |
| 1990 | 0 | 20 | 14 | 0 | 0 | 34 |
| 1991 | 5 | 12 | 6 | 0 | 0 | 23 |
| 1992 | 0 | 8 | 7 | 0 | 0 | 15 |
| 1993 | 0 | 14 | 12 | 0 | 0 | 26 |
| 1994 | 0 | 49 | 14 | 0 | 0 | 63 |
| 1995 | 6 | 33 | 18 | 0 | 0 | 57 |
| 1996 | 3 | 52 | 14 | 0 | 0 | 69 |
| 1997 | 3 | 114 | 14 | 0 | 0 | 131 |
| 1998 | 0 | 90 | 15 | 0 | 0 | 105 |
| 1999 | 0 | 148 | 11 | 0 | 0 | 159 |
| 2000 | 1 | 121 | 16 | 0 | 0 | 138 |
| 2001 | 4 | 152 | 12 | 0 | 0 | 168 |
| 2002 | 1 | 212 | 41 | 0 | 0 | 254 |
| 2003 | 0 | 239 | 23 | 0 | 0 | 262 |
| 2004 | 3 | 384 | 32 | 0 | 0 | 419 |
| 2005 | 1 | 130 | 54 | 0 | 0 | 185 |
| 2006 | 2 | 267 | 93 | 0 | 0 | 362 |
| 2007 | 1 | 224 | 68 | 0 | 0 | 293 |
| 2008 | 8 | 183 | 79 | 0 | 0 | 270 |
| 2009 | 6 | 370 | 110 | 0 | 0 | 486 |
| 2010 | 2 | 203 | 102 | 0 | 0 | 307 |
| 2011 | 0 | 176 | 117 | 0 | 0 | 293 |
| 2012 | 3 | 260 | 97 | 0 | 0 | 360 |
| 2013 | 9 | 492 | 182 | 0 | 0 | 683 |
| 2014 | 3 | 539 | 101 | 0 | 0 | 643 |
| 2015 | 4 | 421 | 100 | 0 | 0 | 525 |
| 2016 | 3 | 370 | 128 | 0 | 0 | 501 |
| 2017 | 7 | 464 | 117 | 0 | 0 | 588 |
| 2018 | 5 | 427 | 143 | 0 | 0 | 575 |
| 2019 | 5 | 393 | 145 | 0 | 0 | 543 |
| 2020 | 3 | 481 | 220 | 0 | 0 | 704 |
| 2021 | 3 | 483 | 162 | 0 | 0 | 648 |
| 2022 | 4 | 574 | 248 | 0 | 0 | 826 |
| 2023 | 12 | 684 | 135 | 0 | 0 | 831 |
| 2024 | 16 | 714 | 134 | 0 | 0 | 864 |
| 2025 | 0 | 2 | 11 | 0 | 0 | 13 |
| Total | 128 | 9537 | 2860 | 0 | 0 | 12525 |