*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	0	0	0	1	1
1970	0	0	0	0	0	0
1971	0	0	0	0	0	0
1972	0	0	0	0	1	1
1973	0	0	0	0	0	0
1974	0	0	0	0	0	0
1975	0	0	0	0	1	1
1976	0	0	0	0	2	2
1977	0	0	0	0	0	0
1978	0	0	0	0	1	1
1979	0	0	1	0	1	2
1980	0	0	0	0	1	1
1981	0	0	2	0	2	4
1982	0	0	0	0	0	0
1983	0	0	0	0	1	1
1984	0	0	0	0	0	0
1985	0	0	1	0	2	3
1986	0	0	0	0	1	1
1987	0	0	0	0	0	0
1988	0	0	1	0	0	1
1989	0	0	0	0	1	1
1990	0	0	0	0	3	3
1991	0	0	1	0	0	1
1992	0	0	0	0	1	1
1993	0	0	0	0	2	2
1994	0	0	2	0	2	4
1995	0	0	2	0	3	5
1996	0	0	1	0	1	2
1997	0	0	4	0	2	6
1998	0	0	4	0	2	6
1999	0	0	1	0	1	2
2000	0	0	2	0	2	4
2001	0	0	2	0	1	3
2002	0	0	4	0	2	6
2003	0	0	2	0	1	3
2004	0	0	1	0	3	4
2005	0	0	2	0	2	4
2006	0	0	4	0	0	4
2007	0	0	5	0	1	6
2008	0	0	3	0	3	6
2009	0	0	6	0	3	9
2010	0	0	2	0	2	4
2011	0	0	7	0	2	9
2012	0	0	6	0	1	7
2013	0	0	3	0	1	4
2014	0	0	7	0	0	7
2015	0	0	10	0	0	10
2016	0	0	19	0	0	19
2017	0	0	11	0	3	14
2018	0	0	9	0	0	9
2019	0	0	11	0	3	14
2020	0	0	20	0	1	21
2021	0	0	13	0	2	15
2022	0	0	7	0	1	8
2023	0	0	0	0	0	0
2024	0	0	0	0	0	0
Total	0	0	176	0	66	242