*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	0	0	0	0	0
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	1	0	0	1
1975	0	0	0	0	0	0
1976	0	0	1	0	0	1
1977	0	0	0	0	1	1
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	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	2	0	0	2
1990	0	0	1	0	0	1
1991	0	0	0	0	0	0
1992	0	0	3	0	0	3
1993	0	0	2	0	0	2
1994	0	0	2	0	0	2
1995	0	0	3	0	0	3
1996	0	0	9	0	0	9
1997	0	0	5	0	0	5
1998	0	0	2	0	0	2
1999	0	0	5	0	0	5
2000	0	0	2	0	0	2
2001	0	0	6	0	0	6
2002	0	0	10	0	0	10
2003	0	0	4	0	0	4
2004	0	0	12	0	0	12
2005	0	0	3	0	0	3
2006	0	0	8	0	0	8
2007	0	0	12	0	0	12
2008	0	0	16	0	0	16
2009	0	0	16	0	0	16
2010	0	0	19	0	0	19
2011	0	0	15	0	0	15
2012	0	0	12	0	0	12
2013	0	0	15	0	0	15
2014	0	0	23	0	1	24
2015	0	0	21	0	0	21
2016	0	0	23	0	0	23
2017	0	0	19	0	0	19
2018	0	0	23	0	0	23
2019	0	0	31	0	0	31
2020	0	0	54	0	0	54
2021	0	0	52	0	0	52
2022	0	0	59	0	0	59
2023	0	0	1	0	0	1
2024	0	0	0	0	0	0
Total	0	0	494	0	2	496