

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 4 | 10 | 0 | 76 | 91 |
| 1970 | 0 | 0 | 3 | 0 | 2 | 5 |
| 1971 | 0 | 0 | 1 | 0 | 9 | 10 |
| 1972 | 0 | 0 | 1 | 0 | 7 | 8 |
| 1973 | 0 | 0 | 1 | 0 | 8 | 9 |
| 1974 | 0 | 2 | 7 | 0 | 5 | 14 |
| 1975 | 0 | 0 | 4 | 0 | 8 | 12 |
| 1976 | 0 | 2 | 3 | 0 | 8 | 13 |
| 1977 | 0 | 1 | 3 | 0 | 10 | 14 |
| 1978 | 0 | 1 | 2 | 0 | 9 | 12 |
| 1979 | 0 | 2 | 8 | 0 | 13 | 23 |
| 1980 | 0 | 1 | 5 | 0 | 14 | 20 |
| 1981 | 0 | 0 | 7 | 0 | 13 | 20 |
| 1982 | 0 | 2 | 9 | 0 | 18 | 29 |
| 1983 | 0 | 1 | 5 | 0 | 14 | 20 |
| 1984 | 0 | 1 | 7 | 0 | 15 | 23 |
| 1985 | 0 | 2 | 7 | 0 | 17 | 26 |
| 1986 | 1 | 2 | 17 | 0 | 19 | 39 |
| 1987 | 0 | 3 | 25 | 0 | 16 | 44 |
| 1988 | 0 | 2 | 23 | 0 | 19 | 44 |
| 1989 | 1 | 6 | 39 | 0 | 17 | 63 |
| 1990 | 3 | 22 | 8 | 1 | 18 | 52 |
| 1991 | 6 | 18 | 44 | 0 | 11 | 79 |
| 1992 | 5 | 212 | 26 | 1 | 20 | 264 |
| 1993 | 9 | 643 | 20 | 1 | 21 | 694 |
| 1994 | 7 | 1980 | 51 | 0 | 22 | 2060 |
| 1995 | 4 | 1944 | 38 | 4 | 23 | 2013 |
| 1996 | 2 | 2001 | 38 | 1 | 15 | 2057 |
| 1997 | 1 | 696 | 25 | 3 | 30 | 755 |
| 1998 | 1 | 1080 | 30 | 1 | 18 | 1130 |
| 1999 | 1 | 113 | 17 | 1 | 23 | 155 |
| 2000 | 0 | 1013 | 52 | 1 | 32 | 1098 |
| 2001 | 2 | 862 | 55 | 1 | 34 | 954 |
| 2002 | 2 | 1453 | 79 | 2 | 38 | 1574 |
| 2003 | 2 | 1020 | 61 | 2 | 24 | 1109 |
| 2004 | 5 | 1715 | 56 | 1 | 28 | 1805 |
| 2005 | 2 | 293 | 61 | 1 | 26 | 383 |
| 2006 | 0 | 771 | 73 | 2 | 30 | 876 |
| 2007 | 2 | 1394 | 113 | 2 | 34 | 1545 |
| 2008 | 3 | 672 | 147 | 1 | 26 | 849 |
| 2009 | 2 | 110 | 144 | 0 | 41 | 297 |
| 2010 | 0 | 393 | 292 | 1 | 43 | 729 |
| 2011 | 0 | 293 | 327 | 1 | 74 | 695 |
| 2012 | 4 | 690 | 432 | 0 | 101 | 1227 |
| 2013 | 2 | 640 | 402 | 2 | 75 | 1121 |
| 2014 | 10 | 765 | 476 | 0 | 117 | 1368 |
| 2015 | 8 | 965 | 685 | 4 | 232 | 1894 |
| 2016 | 6 | 1073 | 818 | 1 | 206 | 2104 |
| 2017 | 7 | 1395 | 1275 | 2 | 271 | 2950 |
| 2018 | 6 | 1298 | 1148 | 7 | 351 | 2810 |
| 2019 | 17 | 1234 | 1152 | 7 | 271 | 2681 |
| 2020 | 5 | 1282 | 1858 | 1 | 353 | 3499 |
| 2021 | 4 | 1244 | 1726 | 3 | 566 | 3543 |
| 2022 | 11 | 1343 | 2199 | 1 | 349 | 3903 |
| 2023 | 16 | 1971 | 1333 | 0 | 435 | 3755 |
| 2024 | 13 | 1720 | 1369 | 0 | 367 | 3469 |
| 2025 | 0 | 1 | 23 | 0 | 2 | 26 |
| Total | 171 | 34351 | 16840 | 56 | 4644 | 56062 |