*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	1	2	0	8	11
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	0	0	1	1
1976	0	0	0	0	2	2
1977	0	0	2	0	3	5
1978	0	0	0	0	1	1
1979	0	0	0	0	2	2
1980	0	0	0	0	2	2
1981	0	0	0	0	4	4
1982	0	1	0	0	4	5
1983	0	1	1	0	1	3
1984	0	0	0	0	3	3
1985	1	0	2	0	1	4
1986	0	2	3	0	2	7
1987	1	0	4	0	4	9
1988	0	3	6	0	3	12
1989	1	1	5	0	4	11
1990	0	6	3	0	4	13
1991	2	6	7	0	3	18
1992	0	4	8	0	6	18
1993	2	12	7	0	3	24
1994	0	20	14	0	8	42
1995	1	12	15	0	10	38
1996	1	13	8	0	3	25
1997	0	16	10	0	8	34
1998	2	13	14	0	3	32
1999	2	12	11	0	8	33
2000	1	23	25	0	8	57
2001	2	19	16	0	8	45
2002	0	9	27	0	3	39
2003	1	36	28	0	5	70
2004	0	32	21	0	5	58
2005	2	43	58	0	5	108
2006	2	38	30	0	7	77
2007	0	12	42	0	5	59
2008	1	24	49	0	4	78
2009	0	55	57	0	6	118
2010	1	50	144	0	1	196
2011	1	25	185	0	12	223
2012	1	98	227	0	14	340
2013	1	99	88	1	13	202
2014	2	114	50	0	13	179
2015	2	149	89	0	13	253
2016	4	177	113	0	9	303
2017	4	179	134	0	11	328
2018	2	176	141	0	12	331
2019	7	253	140	0	20	420
2020	2	242	229	0	23	496
2021	1	176	128	0	22	327
2022	1	215	198	0	8	422
2023	1	237	122	0	6	366
2024	6	298	152	0	10	466
2025	0	2	6	0	1	9
Total	58	2905	2621	1	345	5930