*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	2	0	5	0	0	7
1970	0	0	0	0	0	0
1971	0	0	0	0	0	0
1972	0	0	0	0	0	0
1973	0	0	1	0	0	1
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	3	0	0	3
1979	0	0	1	0	0	1
1980	0	0	0	0	0	0
1981	0	0	2	0	0	2
1982	0	0	1	0	0	1
1983	0	0	1	0	0	1
1984	0	0	0	0	0	0
1985	0	0	1	0	0	1
1986	0	0	2	0	0	2
1987	0	0	4	0	0	4
1988	0	0	1	0	0	1
1989	0	0	5	0	0	5
1990	0	0	6	0	0	6
1991	0	0	4	0	0	4
1992	0	0	4	0	0	4
1993	0	0	7	0	0	7
1994	0	1	7	0	0	8
1995	0	0	5	0	0	5
1996	0	0	9	0	0	9
1997	0	0	6	0	0	6
1998	0	0	5	0	0	5
1999	0	0	3	0	0	3
2000	0	1	6	0	0	7
2001	0	0	5	0	0	5
2002	0	0	11	0	0	11
2003	0	1	5	0	0	6
2004	2	1	11	0	0	14
2005	0	0	12	0	0	12
2006	4	0	8	0	0	12
2007	1	0	12	0	0	13
2008	0	0	10	0	0	10
2009	4	1	8	0	0	13
2010	0	0	7	0	0	7
2011	16	0	16	0	0	32
2012	4	1	10	0	0	15
2013	5	2	17	0	0	24
2014	4	1	23	0	0	28
2015	9	3	21	0	0	33
2016	18	4	32	0	0	54
2017	47	1	37	0	0	85
2018	25	4	41	0	0	70
2019	26	1	33	0	0	60
2020	28	4	38	0	0	70
2021	35	1	47	0	0	83
2022	11	3	27	0	0	41
2023	15	2	1	0	0	18
2024	0	1	3	0	0	4
Total	256	33	524	0	0	813