

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 5 | 69 | 15 | 0 | 34 | 123 |
| 1970 | 0 | 10 | 5 | 0 | 2 | 17 |
| 1971 | 1 | 11 | 4 | 0 | 1 | 17 |
| 1972 | 0 | 9 | 1 | 0 | 4 | 14 |
| 1973 | 0 | 22 | 1 | 0 | 1 | 24 |
| 1974 | 0 | 49 | 1 | 0 | 1 | 51 |
| 1975 | 3 | 90 | 14 | 0 | 4 | 111 |
| 1976 | 2 | 70 | 29 | 0 | 7 | 108 |
| 1977 | 1 | 87 | 18 | 0 | 9 | 115 |
| 1978 | 0 | 43 | 3 | 0 | 8 | 54 |
| 1979 | 0 | 50 | 18 | 0 | 9 | 77 |
| 1980 | 0 | 211 | 59 | 0 | 9 | 279 |
| 1981 | 1 | 223 | 18 | 0 | 17 | 259 |
| 1982 | 1 | 153 | 14 | 0 | 14 | 182 |
| 1983 | 0 | 98 | 16 | 0 | 16 | 130 |
| 1984 | 0 | 67 | 16 | 0 | 11 | 94 |
| 1985 | 0 | 54 | 9 | 0 | 8 | 71 |
| 1986 | 0 | 32 | 10 | 0 | 7 | 49 |
| 1987 | 0 | 79 | 15 | 0 | 7 | 101 |
| 1988 | 3 | 94 | 13 | 1 | 8 | 119 |
| 1989 | 0 | 57 | 11 | 1 | 7 | 76 |
| 1990 | 4 | 83 | 6 | 1 | 10 | 104 |
| 1991 | 1 | 56 | 13 | 1 | 5 | 76 |
| 1992 | 5 | 72 | 6 | 0 | 7 | 90 |
| 1993 | 3 | 84 | 6 | 1 | 9 | 103 |
| 1994 | 3 | 43 | 13 | 0 | 11 | 70 |
| 1995 | 4 | 44 | 31 | 0 | 11 | 90 |
| 1996 | 7 | 48 | 24 | 0 | 8 | 87 |
| 1997 | 0 | 59 | 20 | 1 | 11 | 91 |
| 1998 | 1 | 56 | 32 | 0 | 9 | 98 |
| 1999 | 1 | 45 | 9 | 0 | 8 | 63 |
| 2000 | 5 | 53 | 35 | 0 | 13 | 106 |
| 2001 | 2 | 67 | 32 | 0 | 9 | 110 |
| 2002 | 3 | 45 | 42 | 0 | 7 | 97 |
| 2003 | 3 | 63 | 30 | 0 | 7 | 103 |
| 2004 | 3 | 77 | 41 | 0 | 15 | 136 |
| 2005 | 2 | 76 | 51 | 0 | 10 | 139 |
| 2006 | 2 | 142 | 38 | 0 | 8 | 190 |
| 2007 | 3 | 198 | 61 | 0 | 12 | 274 |
| 2008 | 1 | 148 | 69 | 0 | 11 | 229 |
| 2009 | 1 | 227 | 61 | 0 | 23 | 312 |
| 2010 | 3 | 224 | 66 | 0 | 23 | 316 |
| 2011 | 2 | 141 | 84 | 0 | 26 | 253 |
| 2012 | 9 | 201 | 118 | 0 | 25 | 353 |
| 2013 | 2 | 274 | 88 | 0 | 32 | 396 |
| 2014 | 3 | 273 | 75 | 0 | 16 | 367 |
| 2015 | 3 | 334 | 151 | 0 | 48 | 536 |
| 2016 | 0 | 359 | 140 | 0 | 57 | 556 |
| 2017 | 5 | 303 | 179 | 0 | 84 | 571 |
| 2018 | 0 | 270 | 134 | 2 | 58 | 464 |
| 2019 | 2 | 247 | 120 | 2 | 30 | 401 |
| 2020 | 4 | 356 | 195 | 0 | 33 | 588 |
| 2021 | 5 | 376 | 292 | 0 | 56 | 729 |
| 2022 | 4 | 349 | 327 | 0 | 51 | 731 |
| 2023 | 14 | 434 | 199 | 0 | 60 | 707 |
| 2024 | 11 | 377 | 307 | 0 | 65 | 760 |
| 2025 | 0 | 9 | 21 | 0 | 8 | 38 |
| 2026 | 0 | 0 | 1 | 0 | 4 | 5 |
| Total | 138 | 7791 | 3407 | 10 | 1064 | 12410 |