

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 4 | 3 | 14 | 0 | 8 | 29 |
| 1970 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1971 | 0 | 7 | 2 | 0 | 5 | 14 |
| 1972 | 0 | 0 | 1 | 0 | 1 | 2 |
| 1973 | 0 | 0 | 2 | 0 | 3 | 5 |
| 1974 | 0 | 1 | 5 | 0 | 4 | 10 |
| 1975 | 0 | 1 | 4 | 0 | 1 | 6 |
| 1976 | 0 | 1 | 3 | 0 | 6 | 10 |
| 1977 | 0 | 0 | 3 | 0 | 7 | 10 |
| 1978 | 0 | 1 | 1 | 0 | 3 | 5 |
| 1979 | 0 | 1 | 1 | 0 | 4 | 6 |
| 1980 | 0 | 0 | 2 | 0 | 6 | 8 |
| 1981 | 0 | 0 | 4 | 0 | 8 | 12 |
| 1982 | 0 | 0 | 6 | 0 | 12 | 18 |
| 1983 | 0 | 1 | 4 | 0 | 5 | 10 |
| 1984 | 0 | 2 | 4 | 0 | 6 | 12 |
| 1985 | 0 | 1 | 5 | 0 | 9 | 15 |
| 1986 | 0 | 2 | 9 | 0 | 2 | 13 |
| 1987 | 0 | 5 | 9 | 0 | 7 | 21 |
| 1988 | 0 | 4 | 5 | 0 | 12 | 21 |
| 1989 | 0 | 7 | 22 | 0 | 7 | 36 |
| 1990 | 0 | 12 | 11 | 0 | 8 | 31 |
| 1991 | 0 | 12 | 14 | 0 | 6 | 32 |
| 1992 | 7 | 26 | 21 | 0 | 7 | 61 |
| 1993 | 0 | 63 | 30 | 0 | 11 | 104 |
| 1994 | 3 | 113 | 47 | 0 | 17 | 180 |
| 1995 | 5 | 42 | 34 | 1 | 9 | 91 |
| 1996 | 4 | 85 | 38 | 0 | 15 | 142 |
| 1997 | 4 | 70 | 34 | 0 | 10 | 118 |
| 1998 | 2 | 94 | 38 | 0 | 8 | 142 |
| 1999 | 2 | 57 | 25 | 0 | 6 | 90 |
| 2000 | 7 | 101 | 56 | 0 | 12 | 176 |
| 2001 | 1 | 108 | 44 | 0 | 23 | 176 |
| 2002 | 1 | 103 | 86 | 0 | 11 | 201 |
| 2003 | 2 | 188 | 66 | 0 | 9 | 265 |
| 2004 | 3 | 205 | 53 | 0 | 9 | 270 |
| 2005 | 1 | 149 | 93 | 0 | 17 | 260 |
| 2006 | 4 | 94 | 116 | 0 | 17 | 231 |
| 2007 | 3 | 95 | 144 | 0 | 15 | 257 |
| 2008 | 0 | 215 | 134 | 0 | 14 | 363 |
| 2009 | 4 | 45 | 173 | 0 | 27 | 249 |
| 2010 | 2 | 71 | 344 | 0 | 13 | 430 |
| 2011 | 1 | 72 | 342 | 0 | 24 | 439 |
| 2012 | 8 | 293 | 311 | 0 | 28 | 640 |
| 2013 | 14 | 351 | 400 | 0 | 33 | 798 |
| 2014 | 8 | 389 | 525 | 0 | 46 | 968 |
| 2015 | 13 | 573 | 535 | 0 | 93 | 1214 |
| 2016 | 9 | 540 | 679 | 1 | 79 | 1308 |
| 2017 | 13 | 613 | 702 | 0 | 87 | 1415 |
| 2018 | 20 | 702 | 904 | 1 | 98 | 1725 |
| 2019 | 30 | 838 | 1046 | 2 | 110 | 2026 |
| 2020 | 14 | 808 | 1423 | 0 | 93 | 2338 |
| 2021 | 8 | 751 | 1419 | 0 | 105 | 2283 |
| 2022 | 14 | 937 | 1635 | 0 | 128 | 2714 |
| 2023 | 29 | 1382 | 1082 | 0 | 72 | 2565 |
| 2024 | 23 | 1558 | 1094 | 0 | 70 | 2745 |
| 2025 | 0 | 1 | 37 | 0 | 2 | 40 |
| Total | 263 | 11793 | 13842 | 5 | 1449 | 27352 |