*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	2	0	0	0	2
1975	0	2	0	0	0	2
1976	0	0	2	0	0	2
1977	0	0	2	0	0	2
1978	0	0	0	0	0	0
1979	0	6	2	0	0	8
1980	0	4	5	0	0	9
1981	0	1	2	0	0	3
1982	0	0	2	0	0	2
1983	0	1	2	0	0	3
1984	0	0	1	0	0	1
1985	0	0	1	0	0	1
1986	0	1	0	0	0	1
1987	0	4	1	0	0	5
1988	0	1	3	0	0	4
1989	0	14	1	0	0	15
1990	0	12	1	0	0	13
1991	0	5	1	0	0	6
1992	0	7	4	0	0	11
1993	0	22	2	0	0	24
1994	1	67	6	0	0	74
1995	2	15	8	0	0	25
1996	2	30	5	0	0	37
1997	1	131	8	0	0	140
1998	1	84	5	0	0	90
1999	1	70	12	0	0	83
2000	0	194	6	0	0	200
2001	0	132	5	0	0	137
2002	0	213	9	0	0	222
2003	3	207	12	0	0	222
2004	0	246	24	0	0	270
2005	2	155	11	0	0	168
2006	1	444	28	0	0	473
2007	1	314	15	0	0	330
2008	1	241	20	0	0	262
2009	0	220	60	0	0	280
2010	3	481	33	0	0	517
2011	1	389	48	0	0	438
2012	0	847	12	0	0	859
2013	0	277	20	0	0	297
2014	0	284	11	0	0	295
2015	0	41	8	0	0	49
2016	0	22	7	0	0	29
2017	0	110	3	0	0	113
2018	0	17	0	0	0	17
2019	0	21	0	0	0	21
2020	0	2	0	0	0	2
2021	0	1	0	0	0	1
Total	20	5337	408	0	0	5765