*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	0	0	0	0
1975	0	0	2	0	0	2
1976	0	0	4	0	0	4
1977	0	0	3	0	0	3
1978	0	0	0	0	0	0
1979	0	0	2	0	0	2
1980	0	0	1	0	0	1
1981	0	0	0	0	0	0
1982	0	0	3	0	0	3
1983	0	0	0	0	0	0
1984	0	0	4	0	0	4
1985	0	1	2	0	0	3
1986	0	1	8	0	0	9
1987	0	2	7	0	0	9
1988	0	4	8	0	0	12
1989	0	9	11	0	0	20
1990	0	24	10	0	0	34
1991	2	17	18	0	0	37
1992	2	20	20	0	0	42
1993	3	83	26	0	0	112
1994	3	146	35	0	0	184
1995	11	109	19	0	0	139
1996	5	122	31	0	0	158
1997	7	151	44	0	0	202
1998	6	185	25	0	0	216
1999	4	110	20	0	0	134
2000	10	219	33	0	0	262
2001	9	167	28	0	0	204
2002	4	151	35	0	0	190
2003	8	274	45	0	0	327
2004	3	326	85	0	0	414
2005	5	229	66	0	0	300
2006	4	229	122	0	0	355
2007	4	185	130	0	0	319
2008	5	251	167	0	0	423
2009	5	136	211	0	0	352
2010	6	165	356	0	0	527
2011	3	45	379	0	0	427
2012	2	96	148	0	0	246
2013	4	80	247	0	0	331
2014	6	37	124	0	0	167
2015	0	14	52	0	0	66
2016	1	17	25	0	0	43
2017	2	12	27	0	0	41
2018	0	4	0	0	0	4
2019	2	34	1	0	0	37
2020	0	4	1	0	0	5
2021	1	2	2	0	0	5
Total	127	3661	2587	0	0	6375