

*Excludes Observations that spanned multiple years
| B  | b  | t  | W  | w  | ||
|---|---|---|---|---|---|---|
| Pre 1970 | 0 | 5 | 19 | 0 | 22 | 46 | 
| 1970 | 0 | 0 | 1 | 0 | 1 | 2 | 
| 1971 | 0 | 6 | 1 | 0 | 3 | 10 | 
| 1972 | 0 | 0 | 1 | 0 | 2 | 3 | 
| 1973 | 0 | 0 | 3 | 0 | 2 | 5 | 
| 1974 | 0 | 0 | 4 | 0 | 2 | 6 | 
| 1975 | 0 | 5 | 3 | 0 | 4 | 12 | 
| 1976 | 0 | 2 | 4 | 0 | 4 | 10 | 
| 1977 | 0 | 2 | 8 | 0 | 5 | 15 | 
| 1978 | 0 | 0 | 4 | 0 | 5 | 9 | 
| 1979 | 0 | 1 | 3 | 0 | 8 | 12 | 
| 1980 | 0 | 3 | 6 | 0 | 4 | 13 | 
| 1981 | 0 | 2 | 2 | 0 | 7 | 11 | 
| 1982 | 0 | 2 | 5 | 0 | 7 | 14 | 
| 1983 | 0 | 1 | 6 | 0 | 5 | 12 | 
| 1984 | 0 | 2 | 3 | 0 | 8 | 13 | 
| 1985 | 0 | 2 | 7 | 0 | 8 | 17 | 
| 1986 | 0 | 3 | 9 | 1 | 6 | 19 | 
| 1987 | 0 | 2 | 20 | 0 | 9 | 31 | 
| 1988 | 0 | 4 | 9 | 0 | 11 | 24 | 
| 1989 | 0 | 13 | 9 | 1 | 12 | 35 | 
| 1990 | 1 | 33 | 17 | 1 | 15 | 67 | 
| 1991 | 1 | 24 | 19 | 0 | 15 | 59 | 
| 1992 | 3 | 10 | 25 | 1 | 12 | 51 | 
| 1993 | 0 | 27 | 26 | 0 | 14 | 67 | 
| 1994 | 1 | 71 | 44 | 0 | 15 | 131 | 
| 1995 | 4 | 51 | 38 | 1 | 15 | 109 | 
| 1996 | 2 | 42 | 36 | 0 | 16 | 96 | 
| 1997 | 1 | 145 | 36 | 0 | 18 | 200 | 
| 1998 | 2 | 134 | 29 | 0 | 12 | 177 | 
| 1999 | 1 | 98 | 23 | 0 | 13 | 135 | 
| 2000 | 2 | 128 | 42 | 0 | 21 | 193 | 
| 2001 | 0 | 114 | 31 | 0 | 20 | 165 | 
| 2002 | 0 | 102 | 68 | 1 | 10 | 181 | 
| 2003 | 0 | 262 | 59 | 0 | 17 | 338 | 
| 2004 | 0 | 369 | 53 | 0 | 17 | 439 | 
| 2005 | 1 | 171 | 108 | 0 | 18 | 298 | 
| 2006 | 1 | 149 | 106 | 0 | 20 | 276 | 
| 2007 | 1 | 152 | 148 | 2 | 21 | 324 | 
| 2008 | 0 | 290 | 138 | 2 | 20 | 450 | 
| 2009 | 2 | 151 | 177 | 0 | 21 | 351 | 
| 2010 | 1 | 135 | 267 | 0 | 21 | 424 | 
| 2011 | 1 | 160 | 281 | 1 | 39 | 482 | 
| 2012 | 2 | 328 | 362 | 0 | 52 | 744 | 
| 2013 | 3 | 407 | 282 | 1 | 36 | 729 | 
| 2014 | 5 | 514 | 310 | 1 | 60 | 890 | 
| 2015 | 5 | 538 | 464 | 1 | 100 | 1108 | 
| 2016 | 1 | 544 | 526 | 0 | 93 | 1164 | 
| 2017 | 6 | 742 | 582 | 0 | 103 | 1433 | 
| 2018 | 6 | 746 | 621 | 1 | 98 | 1472 | 
| 2019 | 3 | 962 | 822 | 3 | 117 | 1907 | 
| 2020 | 5 | 911 | 1110 | 1 | 120 | 2147 | 
| 2021 | 1 | 896 | 1068 | 0 | 186 | 2151 | 
| 2022 | 5 | 1117 | 1251 | 1 | 154 | 2528 | 
| 2023 | 4 | 1512 | 768 | 0 | 158 | 2442 | 
| 2024 | 6 | 1435 | 837 | 0 | 177 | 2455 | 
| 2025 | 0 | 2 | 14 | 0 | 0 | 16 | 
| Total | 77 | 13527 | 10915 | 20 | 1979 | 26518 |