

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 1 | 3 | 18 | 0 | 0 | 22 |
| 1970 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1971 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1972 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 0 | 0 | 2 | 0 | 0 | 2 |
| 1974 | 0 | 0 | 4 | 0 | 0 | 4 |
| 1975 | 0 | 5 | 2 | 0 | 0 | 7 |
| 1976 | 0 | 0 | 8 | 0 | 0 | 8 |
| 1977 | 0 | 2 | 8 | 0 | 0 | 10 |
| 1978 | 0 | 1 | 3 | 0 | 0 | 4 |
| 1979 | 0 | 2 | 6 | 0 | 0 | 8 |
| 1980 | 0 | 4 | 9 | 0 | 0 | 13 |
| 1981 | 0 | 0 | 9 | 0 | 0 | 9 |
| 1982 | 0 | 1 | 7 | 0 | 0 | 8 |
| 1983 | 0 | 0 | 6 | 0 | 0 | 6 |
| 1984 | 0 | 0 | 5 | 0 | 0 | 5 |
| 1985 | 2 | 1 | 6 | 0 | 0 | 9 |
| 1986 | 0 | 6 | 9 | 0 | 0 | 15 |
| 1987 | 0 | 2 | 11 | 0 | 0 | 13 |
| 1988 | 0 | 8 | 10 | 0 | 0 | 18 |
| 1989 | 2 | 15 | 17 | 0 | 0 | 34 |
| 1990 | 3 | 29 | 20 | 0 | 0 | 52 |
| 1991 | 5 | 14 | 20 | 0 | 0 | 39 |
| 1992 | 1 | 11 | 17 | 0 | 0 | 29 |
| 1993 | 0 | 32 | 35 | 0 | 0 | 67 |
| 1994 | 1 | 55 | 59 | 0 | 0 | 115 |
| 1995 | 3 | 37 | 39 | 0 | 0 | 79 |
| 1996 | 3 | 36 | 64 | 0 | 0 | 103 |
| 1997 | 0 | 45 | 63 | 0 | 0 | 108 |
| 1998 | 0 | 40 | 79 | 0 | 0 | 119 |
| 1999 | 0 | 39 | 83 | 0 | 0 | 122 |
| 2000 | 0 | 25 | 95 | 0 | 0 | 120 |
| 2001 | 0 | 13 | 123 | 0 | 0 | 136 |
| 2002 | 0 | 12 | 123 | 0 | 0 | 135 |
| 2003 | 1 | 5 | 147 | 0 | 0 | 153 |
| 2004 | 4 | 12 | 178 | 0 | 0 | 194 |
| 2005 | 1 | 26 | 137 | 0 | 0 | 164 |
| 2006 | 0 | 23 | 146 | 0 | 0 | 169 |
| 2007 | 3 | 29 | 146 | 0 | 0 | 178 |
| 2008 | 1 | 59 | 152 | 0 | 0 | 212 |
| 2009 | 7 | 117 | 152 | 0 | 0 | 276 |
| 2010 | 3 | 116 | 172 | 0 | 0 | 291 |
| 2011 | 2 | 62 | 152 | 0 | 0 | 216 |
| 2012 | 2 | 159 | 138 | 0 | 0 | 299 |
| 2013 | 7 | 296 | 201 | 0 | 0 | 504 |
| 2014 | 2 | 291 | 201 | 0 | 0 | 494 |
| 2015 | 0 | 266 | 237 | 0 | 0 | 503 |
| 2016 | 3 | 295 | 357 | 0 | 0 | 655 |
| 2017 | 7 | 384 | 374 | 0 | 0 | 765 |
| 2018 | 14 | 485 | 347 | 0 | 0 | 846 |
| 2019 | 6 | 548 | 386 | 0 | 0 | 940 |
| 2020 | 15 | 720 | 527 | 0 | 0 | 1262 |
| 2021 | 11 | 593 | 605 | 0 | 0 | 1209 |
| 2022 | 19 | 518 | 724 | 0 | 0 | 1261 |
| 2023 | 2 | 872 | 438 | 0 | 0 | 1312 |
| 2024 | 5 | 860 | 526 | 0 | 0 | 1391 |
| 2025 | 1 | 18 | 18 | 0 | 0 | 37 |
| Total | 137 | 7193 | 7428 | 0 | 0 | 14758 |