

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 7 | 17 | 0 | 1 | 25 |
| 1970 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1971 | 0 | 10 | 1 | 0 | 0 | 11 |
| 1972 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1973 | 0 | 0 | 0 | 0 | 2 | 2 |
| 1974 | 0 | 1 | 2 | 0 | 0 | 3 |
| 1975 | 0 | 5 | 5 | 0 | 1 | 11 |
| 1976 | 0 | 3 | 2 | 0 | 0 | 5 |
| 1977 | 0 | 1 | 8 | 0 | 1 | 10 |
| 1978 | 0 | 1 | 3 | 0 | 1 | 5 |
| 1979 | 0 | 5 | 6 | 0 | 0 | 11 |
| 1980 | 0 | 3 | 8 | 0 | 0 | 11 |
| 1981 | 0 | 1 | 4 | 0 | 1 | 6 |
| 1982 | 0 | 1 | 4 | 0 | 1 | 6 |
| 1983 | 0 | 2 | 5 | 0 | 1 | 8 |
| 1984 | 0 | 4 | 4 | 0 | 0 | 8 |
| 1985 | 0 | 3 | 3 | 0 | 0 | 6 |
| 1986 | 1 | 5 | 4 | 0 | 1 | 11 |
| 1987 | 0 | 2 | 21 | 0 | 0 | 23 |
| 1988 | 0 | 5 | 22 | 0 | 0 | 27 |
| 1989 | 1 | 12 | 32 | 0 | 1 | 46 |
| 1990 | 7 | 57 | 12 | 0 | 0 | 76 |
| 1991 | 4 | 24 | 16 | 0 | 0 | 44 |
| 1992 | 5 | 40 | 13 | 0 | 0 | 58 |
| 1993 | 4 | 234 | 13 | 0 | 0 | 251 |
| 1994 | 3 | 651 | 49 | 0 | 2 | 705 |
| 1995 | 2 | 585 | 28 | 0 | 1 | 616 |
| 1996 | 3 | 388 | 29 | 0 | 1 | 421 |
| 1997 | 1 | 650 | 55 | 0 | 0 | 706 |
| 1998 | 4 | 590 | 35 | 0 | 2 | 631 |
| 1999 | 4 | 382 | 26 | 0 | 0 | 412 |
| 2000 | 3 | 687 | 40 | 0 | 2 | 732 |
| 2001 | 4 | 819 | 33 | 0 | 0 | 856 |
| 2002 | 0 | 867 | 84 | 0 | 0 | 951 |
| 2003 | 8 | 1326 | 53 | 0 | 0 | 1387 |
| 2004 | 5 | 1463 | 54 | 0 | 1 | 1523 |
| 2005 | 6 | 572 | 98 | 0 | 0 | 676 |
| 2006 | 2 | 832 | 155 | 0 | 1 | 990 |
| 2007 | 1 | 934 | 120 | 0 | 1 | 1056 |
| 2008 | 3 | 877 | 183 | 0 | 0 | 1063 |
| 2009 | 4 | 574 | 213 | 0 | 1 | 792 |
| 2010 | 2 | 659 | 363 | 0 | 0 | 1024 |
| 2011 | 2 | 549 | 362 | 0 | 1 | 914 |
| 2012 | 8 | 1213 | 276 | 0 | 0 | 1497 |
| 2013 | 4 | 1184 | 197 | 0 | 0 | 1385 |
| 2014 | 16 | 1436 | 145 | 0 | 0 | 1597 |
| 2015 | 2 | 1345 | 172 | 0 | 0 | 1519 |
| 2016 | 11 | 1474 | 218 | 0 | 3 | 1706 |
| 2017 | 14 | 1746 | 274 | 0 | 3 | 2037 |
| 2018 | 12 | 1714 | 261 | 0 | 0 | 1987 |
| 2019 | 15 | 1820 | 382 | 0 | 0 | 2217 |
| 2020 | 12 | 1913 | 386 | 0 | 1 | 2312 |
| 2021 | 6 | 2064 | 385 | 0 | 6 | 2461 |
| 2022 | 7 | 1927 | 645 | 0 | 1 | 2580 |
| 2023 | 21 | 2508 | 178 | 0 | 0 | 2707 |
| 2024 | 18 | 2479 | 207 | 0 | 0 | 2704 |
| 2025 | 0 | 4 | 13 | 0 | 0 | 17 |
| Total | 225 | 36658 | 5925 | 0 | 39 | 42847 |