*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	0	3	0	0	3
1970	0	0	0	0	0	0
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	0	0	0	0
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	0	0	0	0
1981	0	0	1	0	0	1
1982	0	0	0	0	0	0
1983	0	0	1	0	0	1
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	1	0	0	1
1989	0	0	0	0	0	0
1990	0	0	1	0	0	1
1991	0	0	0	0	0	0
1992	0	0	0	0	0	0
1993	0	0	0	0	0	0
1994	0	0	3	0	0	3
1995	0	0	1	0	0	1
1996	0	0	1	0	0	1
1997	0	0	1	0	0	1
1998	0	0	1	0	0	1
1999	0	0	0	0	0	0
2000	0	1	2	0	0	3
2001	2	3	16	0	0	21
2002	7	4	35	0	0	46
2003	9	1	25	0	0	35
2004	0	2	1	0	0	3
2005	0	2	8	0	0	10
2006	0	1	1	0	0	2
2007	0	4	3	0	0	7
2008	0	0	3	0	0	3
2009	0	2	3	0	0	5
2010	0	3	2	0	0	5
2011	0	0	1	0	0	1
2012	0	3	1	0	0	4
2013	0	6	5	0	0	11
2014	0	7	11	0	0	18
2015	0	11	15	0	0	26
2016	1	12	6	0	0	19
2017	0	12	8	0	0	20
2018	0	33	16	0	0	49
2019	0	25	12	0	0	37
2020	0	30	25	0	0	55
2021	0	35	23	0	0	58
2022	0	30	25	0	0	55
2023	0	0	1	0	0	1
2024	0	0	0	0	0	0
Total	19	227	262	0	0	508