

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 2 | 1 | 18 | 0 | 5 | 26 |
| 1970 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1971 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1972 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1973 | 0 | 1 | 1 | 0 | 0 | 2 |
| 1974 | 0 | 0 | 5 | 0 | 1 | 6 |
| 1975 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1976 | 1 | 2 | 2 | 0 | 2 | 7 |
| 1977 | 0 | 0 | 6 | 0 | 2 | 8 |
| 1978 | 0 | 1 | 3 | 0 | 1 | 5 |
| 1979 | 0 | 1 | 9 | 0 | 1 | 11 |
| 1980 | 0 | 1 | 4 | 0 | 0 | 5 |
| 1981 | 1 | 0 | 5 | 0 | 3 | 9 |
| 1982 | 0 | 2 | 13 | 0 | 4 | 19 |
| 1983 | 0 | 0 | 6 | 0 | 10 | 16 |
| 1984 | 0 | 1 | 4 | 0 | 12 | 17 |
| 1985 | 0 | 1 | 8 | 0 | 9 | 18 |
| 1986 | 1 | 3 | 15 | 0 | 8 | 27 |
| 1987 | 0 | 2 | 30 | 0 | 7 | 39 |
| 1988 | 1 | 1 | 27 | 0 | 6 | 35 |
| 1989 | 0 | 5 | 15 | 0 | 8 | 28 |
| 1990 | 1 | 7 | 13 | 1 | 11 | 33 |
| 1991 | 8 | 18 | 27 | 1 | 4 | 58 |
| 1992 | 10 | 225 | 23 | 2 | 9 | 269 |
| 1993 | 5 | 620 | 35 | 1 | 8 | 669 |
| 1994 | 11 | 2528 | 44 | 0 | 10 | 2593 |
| 1995 | 7 | 2369 | 37 | 1 | 10 | 2424 |
| 1996 | 1 | 2401 | 41 | 0 | 9 | 2452 |
| 1997 | 4 | 332 | 35 | 1 | 15 | 387 |
| 1998 | 5 | 1634 | 44 | 0 | 11 | 1694 |
| 1999 | 1 | 44 | 28 | 0 | 11 | 84 |
| 2000 | 3 | 1621 | 48 | 0 | 17 | 1689 |
| 2001 | 1 | 740 | 51 | 0 | 17 | 809 |
| 2002 | 0 | 1347 | 54 | 1 | 9 | 1411 |
| 2003 | 5 | 986 | 50 | 0 | 16 | 1057 |
| 2004 | 1 | 1815 | 42 | 0 | 17 | 1875 |
| 2005 | 3 | 203 | 74 | 1 | 20 | 301 |
| 2006 | 2 | 947 | 88 | 1 | 24 | 1062 |
| 2007 | 2 | 1307 | 98 | 1 | 23 | 1431 |
| 2008 | 0 | 581 | 106 | 0 | 14 | 701 |
| 2009 | 1 | 194 | 116 | 0 | 21 | 332 |
| 2010 | 8 | 704 | 192 | 0 | 31 | 935 |
| 2011 | 24 | 461 | 223 | 1 | 38 | 747 |
| 2012 | 3 | 738 | 270 | 1 | 48 | 1060 |
| 2013 | 18 | 905 | 433 | 2 | 39 | 1397 |
| 2014 | 8 | 935 | 448 | 1 | 68 | 1460 |
| 2015 | 6 | 1080 | 571 | 2 | 118 | 1777 |
| 2016 | 12 | 1207 | 765 | 0 | 139 | 2123 |
| 2017 | 7 | 1399 | 848 | 2 | 162 | 2418 |
| 2018 | 12 | 1406 | 990 | 2 | 134 | 2544 |
| 2019 | 7 | 1022 | 1091 | 7 | 155 | 2282 |
| 2020 | 8 | 1313 | 1724 | 0 | 157 | 3202 |
| 2021 | 6 | 1185 | 1223 | 1 | 261 | 2676 |
| 2022 | 7 | 1136 | 1531 | 2 | 172 | 2848 |
| 2023 | 20 | 1731 | 1165 | 0 | 233 | 3149 |
| 2024 | 26 | 1637 | 1458 | 0 | 241 | 3362 |
| 2025 | 0 | 1 | 14 | 0 | 6 | 21 |
| Total | 249 | 36802 | 14180 | 32 | 2357 | 53620 |