*Excludes Observations that spanned multiple years
Pre 1970 | 84 |
---|---|
1970 | 1 |
1971 | 0 |
1972 | 1 |
1973 | 1 |
1974 | 8 |
1975 | 2 |
1976 | 1 |
1977 | 0 |
1978 | 1 |
1979 | 3 |
1980 | 0 |
1981 | 1 |
1982 | 5 |
1983 | 3 |
1984 | 4 |
1985 | 0 |
1986 | 6 |
1987 | 3 |
1988 | 2 |
1989 | 4 |
1990 | 1 |
1991 | 8 |
1992 | 9 |
1993 | 41 |
1994 | 27 |
1995 | 57 |
1996 | 44 |
1997 | 52 |
1998 | 50 |
1999 | 34 |
2000 | 59 |
2001 | 94 |
2002 | 100 |
2003 | 98 |
2004 | 111 |
2005 | 21 |
2006 | 51 |
2007 | 20 |
2008 | 28 |
2009 | 41 |
2010 | 46 |
2011 | 26 |
2012 | 13 |
2013 | 22 |
2014 | 23 |
2015 | 41 |
2016 | 71 |
2017 | 59 |
2018 | 86 |
2019 | 52 |
2020 | 30 |
2021 | 38 |
2022 | 29 |
2023 | 30 |
2024 | 52 |
Total | 1694 |