*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	1	1	0	0	2
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	2	0	0	0	2
1976	0	0	1	0	0	1
1977	0	0	3	0	0	3
1978	0	0	1	0	0	1
1979	0	2	1	0	0	3
1980	0	1	1	0	0	2
1981	0	1	2	0	0	3
1982	0	0	1	0	0	1
1983	0	1	3	0	0	4
1984	0	0	1	0	0	1
1985	1	1	0	0	0	2
1986	0	2	1	0	0	3
1987	2	2	1	0	0	5
1988	0	4	5	0	0	9
1989	0	8	2	0	0	10
1990	0	12	1	0	0	13
1991	1	7	5	0	0	13
1992	0	8	6	0	0	14
1993	0	8	7	0	0	15
1994	1	27	12	0	0	40
1995	0	37	13	0	0	50
1996	2	44	9	0	0	55
1997	1	99	15	0	0	115
1998	0	91	12	0	0	103
1999	2	58	12	0	0	72
2000	1	93	17	0	0	111
2001	1	71	17	0	0	89
2002	1	62	26	0	0	89
2003	0	87	19	0	0	106
2004	0	134	17	0	0	151
2005	1	144	39	0	0	184
2006	0	58	25	0	0	83
2007	1	61	42	0	0	104
2008	0	70	43	0	0	113
2009	0	84	53	0	0	137
2010	0	87	51	0	0	138
2011	0	54	71	0	0	125
2012	0	175	58	0	0	233
2013	0	126	41	0	0	167
2014	0	241	38	0	0	279
2015	1	324	77	0	0	402
2016	1	273	104	0	0	378
2017	1	308	100	0	0	409
2018	2	326	111	0	0	439
2019	1	383	87	0	0	471
2020	0	335	171	0	0	506
2021	1	393	116	0	0	510
2022	1	450	61	0	0	512
2023	0	2	5	0	0	7
2024	0	0	9	0	0	9
Total	23	4758	1514	0	0	6295