*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	0	0	0	0	0
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	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	1	0	0	1
1981	0	0	1	0	0	1
1982	0	0	1	0	0	1
1983	0	0	1	0	0	1
1984	0	1	0	0	0	1
1985	0	0	1	0	0	1
1986	0	0	0	0	0	0
1987	0	0	0	0	0	0
1988	0	0	1	0	0	1
1989	0	0	1	0	0	1
1990	0	0	0	0	0	0
1991	0	0	0	0	0	0
1992	0	0	0	0	0	0
1993	0	2	0	0	0	2
1994	3	4	1	0	0	8
1995	0	2	1	0	0	3
1996	1	3	1	0	0	5
1997	0	9	1	0	0	10
1998	0	0	0	0	0	0
1999	0	11	0	0	0	11
2000	0	10	1	0	0	11
2001	0	12	1	0	0	13
2002	0	17	2	0	0	19
2003	0	13	4	0	0	17
2004	0	39	0	0	0	39
2005	0	4	1	0	0	5
2006	0	9	4	0	0	13
2007	0	18	2	0	0	20
2008	0	11	2	0	0	13
2009	0	2	5	0	0	7
2010	0	6	6	0	0	12
2011	0	8	5	0	0	13
2012	0	14	2	0	0	16
2013	0	22	10	0	0	32
2014	1	19	10	0	0	30
2015	0	26	16	0	0	42
2016	0	8	2	0	0	10
2017	2	12	5	0	0	19
2018	2	18	0	0	0	20
2019	0	10	0	0	0	10
2020	3	8	8	0	0	19
2021	1	12	10	0	0	23
2022	0	18	3	0	0	21
2023	0	0	2	0	0	2
2024	0	0	0	0	0	0
Total	13	348	113	0	0	474