*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	1	2	0	0	3
1970	0	0	0	0	0	0
1971	0	1	0	0	0	1
1972	0	0	0	0	0	0
1973	0	0	0	0	0	0
1974	0	0	0	0	0	0
1975	0	0	1	0	0	1
1976	0	2	1	0	0	3
1977	0	0	2	0	0	2
1978	0	0	1	0	0	1
1979	1	0	0	0	0	1
1980	0	0	1	0	0	1
1981	0	0	2	0	0	2
1982	0	1	0	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	3	1	0	0	4
1987	0	1	2	0	0	3
1988	0	4	1	0	0	5
1989	0	8	5	0	0	13
1990	0	14	2	0	0	16
1991	8	7	5	0	0	20
1992	0	8	4	0	0	12
1993	0	17	8	0	0	25
1994	1	40	11	0	0	52
1995	0	14	9	0	0	23
1996	0	21	5	0	0	26
1997	1	51	3	0	0	55
1998	1	47	2	0	0	50
1999	1	30	8	0	0	39
2000	0	40	8	0	0	48
2001	0	37	8	0	0	45
2002	0	43	12	0	0	55
2003	5	53	14	0	0	72
2004	0	91	25	0	0	116
2005	0	53	18	0	0	71
2006	1	86	23	0	0	110
2007	0	55	13	0	0	68
2008	0	30	32	0	0	62
2009	2	33	31	0	0	66
2010	0	30	32	0	0	62
2011	0	75	51	0	0	126
2012	0	149	63	0	0	212
2013	0	112	22	0	0	134
2014	1	149	14	0	0	164
2015	0	174	18	0	0	192
2016	1	230	37	0	0	268
2017	1	294	37	0	0	332
2018	1	292	29	0	0	322
2019	2	305	69	0	0	376
2020	0	320	84	0	0	404
2021	0	347	43	0	0	390
2022	2	318	50	0	0	370
2023	0	4	16	0	0	20
2024	0	12	11	0	0	23
Total	29	3602	836	0	0	4467