*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	2	13	0	0	15
1970	0	0	1	0	0	1
1971	0	0	0	0	0	0
1972	0	0	0	0	0	0
1973	0	0	0	0	0	0
1974	0	0	0	0	0	0
1975	0	0	1	0	0	1
1976	0	0	0	0	0	0
1977	0	0	0	0	0	0
1978	0	0	0	0	0	0
1979	0	0	0	0	0	0
1980	0	0	1	0	0	1
1981	0	0	0	0	0	0
1982	0	0	1	0	0	1
1983	0	0	0	0	0	0
1984	0	0	0	0	0	0
1985	0	0	0	0	0	0
1986	0	0	0	0	0	0
1987	0	0	0	0	0	0
1988	0	0	0	0	0	0
1989	0	0	0	0	0	0
1990	0	0	0	0	0	0
1991	0	1	0	0	0	1
1992	0	0	0	0	0	0
1993	0	0	0	0	0	0
1994	0	0	1	0	0	1
1995	0	0	1	0	0	1
1996	0	0	1	0	0	1
1997	0	0	3	0	0	3
1998	0	0	0	0	0	0
1999	0	0	1	0	0	1
2000	0	0	0	0	0	0
2001	0	0	2	0	0	2
2002	0	0	2	0	0	2
2003	0	0	3	0	0	3
2004	0	0	3	0	0	3
2005	0	0	0	0	0	0
2006	0	0	0	0	0	0
2007	1	0	2	0	0	3
2008	0	2	2	0	0	4
2009	0	2	1	0	0	3
2010	0	0	3	0	0	3
2011	1	1	9	0	0	11
2012	0	1	2	0	0	3
2013	2	7	1	0	0	10
2014	1	7	0	0	0	8
2015	0	6	2	0	0	8
2016	0	11	1	0	0	12
2017	3	12	0	0	0	15
2018	1	14	3	0	0	18
2019	1	17	3	0	0	21
2020	0	17	3	0	0	20
2021	1	19	2	0	0	22
2022	2	16	0	0	0	18
2023	0	0	0	0	0	0
2024	0	0	0	0	0	0
Total	13	135	68	0	0	216