

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 6 | 0 | 69 | 0 | 57 | 132 |
| 1970 | 0 | 0 | 21 | 0 | 3 | 24 |
| 1971 | 0 | 0 | 21 | 0 | 11 | 32 |
| 1972 | 1 | 0 | 28 | 0 | 5 | 34 |
| 1973 | 1 | 1 | 10 | 0 | 4 | 16 |
| 1974 | 6 | 3 | 35 | 0 | 5 | 49 |
| 1975 | 1 | 0 | 22 | 0 | 9 | 32 |
| 1976 | 1 | 0 | 15 | 0 | 12 | 28 |
| 1977 | 7 | 12 | 15 | 0 | 7 | 41 |
| 1978 | 20 | 18 | 20 | 0 | 12 | 70 |
| 1979 | 21 | 6 | 65 | 0 | 14 | 106 |
| 1980 | 14 | 17 | 113 | 0 | 57 | 201 |
| 1981 | 6 | 3 | 62 | 0 | 22 | 93 |
| 1982 | 19 | 5 | 60 | 0 | 41 | 125 |
| 1983 | 20 | 8 | 81 | 0 | 18 | 127 |
| 1984 | 27 | 13 | 50 | 0 | 30 | 120 |
| 1985 | 4 | 13 | 78 | 0 | 40 | 135 |
| 1986 | 7 | 8 | 36 | 0 | 59 | 110 |
| 1987 | 3 | 1 | 38 | 1 | 48 | 91 |
| 1988 | 13 | 6 | 59 | 2 | 55 | 135 |
| 1989 | 9 | 8 | 70 | 1 | 24 | 112 |
| 1990 | 18 | 14 | 121 | 2 | 26 | 181 |
| 1991 | 26 | 15 | 143 | 2 | 21 | 207 |
| 1992 | 9 | 10 | 139 | 0 | 24 | 182 |
| 1993 | 32 | 8 | 222 | 0 | 41 | 303 |
| 1994 | 10 | 14 | 215 | 0 | 30 | 269 |
| 1995 | 10 | 6 | 164 | 1 | 26 | 207 |
| 1996 | 21 | 15 | 156 | 1 | 23 | 216 |
| 1997 | 12 | 9 | 200 | 0 | 40 | 261 |
| 1998 | 10 | 24 | 175 | 0 | 36 | 245 |
| 1999 | 17 | 27 | 215 | 1 | 31 | 291 |
| 2000 | 72 | 32 | 281 | 0 | 45 | 430 |
| 2001 | 23 | 20 | 199 | 1 | 42 | 285 |
| 2002 | 24 | 24 | 201 | 0 | 24 | 273 |
| 2003 | 12 | 18 | 136 | 0 | 21 | 187 |
| 2004 | 29 | 25 | 132 | 0 | 25 | 211 |
| 2005 | 9 | 18 | 125 | 0 | 36 | 188 |
| 2006 | 30 | 37 | 156 | 1 | 33 | 257 |
| 2007 | 25 | 28 | 164 | 1 | 38 | 256 |
| 2008 | 11 | 24 | 189 | 8 | 34 | 266 |
| 2009 | 14 | 47 | 259 | 0 | 48 | 368 |
| 2010 | 50 | 68 | 246 | 2 | 47 | 413 |
| 2011 | 51 | 42 | 383 | 1 | 60 | 537 |
| 2012 | 50 | 13 | 472 | 1 | 114 | 650 |
| 2013 | 74 | 25 | 587 | 0 | 173 | 859 |
| 2014 | 64 | 38 | 552 | 0 | 157 | 811 |
| 2015 | 237 | 54 | 986 | 0 | 245 | 1522 |
| 2016 | 141 | 13 | 1069 | 0 | 293 | 1516 |
| 2017 | 83 | 35 | 1187 | 2 | 387 | 1694 |
| 2018 | 62 | 16 | 1072 | 2 | 325 | 1477 |
| 2019 | 54 | 21 | 1014 | 2 | 249 | 1340 |
| 2020 | 39 | 20 | 955 | 0 | 259 | 1273 |
| 2021 | 57 | 6 | 1066 | 0 | 279 | 1408 |
| 2022 | 63 | 11 | 1034 | 4 | 232 | 1344 |
| 2023 | 99 | 9 | 1147 | 0 | 250 | 1505 |
| 2024 | 88 | 8 | 1269 | 0 | 295 | 1660 |
| 2025 | 66 | 6 | 121 | 0 | 67 | 260 |
| Total | 1878 | 922 | 17720 | 36 | 4609 | 25165 |