

*Excludes Observations that spanned multiple years
B![]() | b![]() | t![]() | W![]() | w![]() | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 12 | 4 | 8 | 0 | 2 | 26 |
| 1970 | 0 | 0 | 3 | 0 | 0 | 3 |
| 1971 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1972 | 0 | 0 | 1 | 0 | 0 | 1 |
| 1973 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1974 | 0 | 2 | 5 | 0 | 0 | 7 |
| 1975 | 5 | 22 | 4 | 0 | 0 | 31 |
| 1976 | 0 | 1 | 6 | 0 | 0 | 7 |
| 1977 | 0 | 1 | 10 | 0 | 0 | 11 |
| 1978 | 1 | 1 | 3 | 0 | 0 | 5 |
| 1979 | 0 | 4 | 7 | 0 | 0 | 11 |
| 1980 | 1 | 4 | 5 | 0 | 0 | 10 |
| 1981 | 0 | 1 | 6 | 0 | 0 | 7 |
| 1982 | 0 | 3 | 7 | 0 | 0 | 10 |
| 1983 | 0 | 2 | 8 | 0 | 0 | 10 |
| 1984 | 0 | 3 | 6 | 0 | 0 | 9 |
| 1985 | 0 | 2 | 3 | 0 | 0 | 5 |
| 1986 | 0 | 2 | 9 | 0 | 0 | 11 |
| 1987 | 0 | 2 | 13 | 0 | 0 | 15 |
| 1988 | 0 | 9 | 8 | 0 | 0 | 17 |
| 1989 | 0 | 12 | 16 | 0 | 0 | 28 |
| 1990 | 0 | 45 | 9 | 0 | 0 | 54 |
| 1991 | 0 | 27 | 20 | 0 | 0 | 47 |
| 1992 | 1 | 19 | 20 | 0 | 0 | 40 |
| 1993 | 2 | 160 | 19 | 0 | 0 | 181 |
| 1994 | 4 | 551 | 30 | 0 | 0 | 585 |
| 1995 | 10 | 597 | 30 | 0 | 0 | 637 |
| 1996 | 7 | 421 | 15 | 0 | 0 | 443 |
| 1997 | 5 | 1210 | 22 | 0 | 0 | 1237 |
| 1998 | 12 | 897 | 34 | 0 | 0 | 943 |
| 1999 | 1 | 639 | 23 | 0 | 0 | 663 |
| 2000 | 1 | 897 | 29 | 0 | 0 | 927 |
| 2001 | 2 | 844 | 30 | 0 | 1 | 877 |
| 2002 | 0 | 1056 | 77 | 0 | 0 | 1133 |
| 2003 | 2 | 1268 | 60 | 0 | 0 | 1330 |
| 2004 | 18 | 1510 | 86 | 0 | 0 | 1614 |
| 2005 | 5 | 893 | 258 | 0 | 0 | 1156 |
| 2006 | 4 | 1062 | 180 | 0 | 0 | 1246 |
| 2007 | 1 | 1080 | 132 | 0 | 0 | 1213 |
| 2008 | 4 | 648 | 131 | 0 | 0 | 783 |
| 2009 | 7 | 699 | 163 | 0 | 0 | 869 |
| 2010 | 20 | 1191 | 209 | 0 | 0 | 1420 |
| 2011 | 17 | 657 | 272 | 0 | 0 | 946 |
| 2012 | 10 | 1331 | 278 | 0 | 0 | 1619 |
| 2013 | 5 | 1301 | 273 | 0 | 0 | 1579 |
| 2014 | 10 | 1408 | 172 | 0 | 0 | 1590 |
| 2015 | 6 | 1163 | 304 | 0 | 0 | 1473 |
| 2016 | 5 | 1050 | 369 | 0 | 0 | 1424 |
| 2017 | 5 | 1408 | 489 | 0 | 0 | 1902 |
| 2018 | 2 | 1246 | 448 | 0 | 0 | 1696 |
| 2019 | 9 | 1323 | 492 | 0 | 0 | 1824 |
| 2020 | 8 | 1324 | 677 | 0 | 0 | 2009 |
| 2021 | 6 | 1455 | 560 | 0 | 0 | 2021 |
| 2022 | 8 | 1746 | 798 | 0 | 0 | 2552 |
| 2023 | 27 | 2300 | 411 | 0 | 0 | 2738 |
| 2024 | 12 | 2019 | 541 | 0 | 0 | 2572 |
| 2025 | 0 | 17 | 32 | 0 | 0 | 49 |
| Total | 255 | 35539 | 7825 | 0 | 3 | 43622 |