

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 2 | 0 | 19 | 0 | 59 | 80 |
| 1970 | 0 | 0 | 4 | 0 | 3 | 7 |
| 1971 | 0 | 0 | 4 | 0 | 5 | 9 |
| 1972 | 0 | 0 | 3 | 0 | 4 | 7 |
| 1973 | 0 | 0 | 4 | 0 | 2 | 6 |
| 1974 | 0 | 0 | 2 | 0 | 5 | 7 |
| 1975 | 0 | 5 | 4 | 0 | 2 | 11 |
| 1976 | 0 | 1 | 7 | 0 | 8 | 16 |
| 1977 | 0 | 0 | 9 | 0 | 8 | 17 |
| 1978 | 0 | 0 | 5 | 0 | 4 | 9 |
| 1979 | 4 | 1 | 30 | 0 | 10 | 45 |
| 1980 | 2 | 0 | 13 | 0 | 8 | 23 |
| 1981 | 6 | 0 | 9 | 0 | 13 | 28 |
| 1982 | 0 | 0 | 8 | 0 | 17 | 25 |
| 1983 | 0 | 0 | 23 | 0 | 7 | 30 |
| 1984 | 0 | 0 | 8 | 0 | 9 | 17 |
| 1985 | 1 | 1 | 4 | 0 | 6 | 12 |
| 1986 | 0 | 4 | 17 | 0 | 11 | 32 |
| 1987 | 2 | 2 | 27 | 2 | 17 | 50 |
| 1988 | 1 | 5 | 27 | 0 | 18 | 51 |
| 1989 | 1 | 3 | 17 | 0 | 14 | 35 |
| 1990 | 3 | 12 | 40 | 0 | 13 | 68 |
| 1991 | 3 | 10 | 50 | 0 | 12 | 75 |
| 1992 | 1 | 9 | 52 | 0 | 16 | 78 |
| 1993 | 3 | 19 | 116 | 0 | 13 | 151 |
| 1994 | 2 | 53 | 112 | 0 | 21 | 188 |
| 1995 | 1 | 20 | 84 | 0 | 14 | 119 |
| 1996 | 4 | 42 | 80 | 0 | 17 | 143 |
| 1997 | 1 | 22 | 111 | 0 | 19 | 153 |
| 1998 | 1 | 57 | 144 | 0 | 20 | 222 |
| 1999 | 1 | 20 | 106 | 0 | 20 | 147 |
| 2000 | 0 | 27 | 185 | 0 | 25 | 237 |
| 2001 | 1 | 11 | 177 | 0 | 24 | 213 |
| 2002 | 0 | 3 | 154 | 0 | 17 | 174 |
| 2003 | 1 | 3 | 219 | 1 | 14 | 238 |
| 2004 | 2 | 3 | 231 | 0 | 20 | 256 |
| 2005 | 1 | 4 | 229 | 0 | 20 | 254 |
| 2006 | 1 | 3 | 283 | 1 | 21 | 309 |
| 2007 | 0 | 4 | 250 | 0 | 32 | 286 |
| 2008 | 0 | 8 | 310 | 6 | 21 | 345 |
| 2009 | 1 | 12 | 329 | 0 | 17 | 359 |
| 2010 | 1 | 9 | 381 | 0 | 18 | 409 |
| 2011 | 1 | 15 | 478 | 1 | 39 | 534 |
| 2012 | 3 | 6 | 530 | 6 | 74 | 619 |
| 2013 | 0 | 8 | 568 | 1 | 44 | 621 |
| 2014 | 0 | 30 | 582 | 0 | 95 | 707 |
| 2015 | 8 | 40 | 898 | 0 | 121 | 1067 |
| 2016 | 4 | 10 | 1095 | 0 | 129 | 1238 |
| 2017 | 6 | 44 | 1400 | 0 | 107 | 1557 |
| 2018 | 7 | 27 | 1225 | 0 | 83 | 1342 |
| 2019 | 7 | 18 | 1419 | 0 | 168 | 1612 |
| 2020 | 0 | 13 | 1481 | 0 | 180 | 1674 |
| 2021 | 1 | 12 | 1418 | 0 | 174 | 1605 |
| 2022 | 5 | 7 | 1636 | 0 | 136 | 1784 |
| 2023 | 10 | 37 | 1551 | 0 | 103 | 1701 |
| 2024 | 12 | 37 | 1952 | 0 | 273 | 2274 |
| 2025 | 0 | 6 | 19 | 0 | 2 | 27 |
| Total | 111 | 683 | 20139 | 18 | 2352 | 23303 |