*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	1	5	3	0	0	9
1970	0	0	0	0	0	0
1971	0	0	1	0	0	1
1972	0	0	2	0	0	2
1973	0	1	0	0	0	1
1974	0	2	2	0	0	4
1975	0	1	2	0	0	3
1976	0	2	4	0	0	6
1977	0	0	6	0	0	6
1978	1	1	0	0	0	2
1979	0	2	3	0	0	5
1980	0	2	1	0	0	3
1981	0	1	1	0	0	2
1982	0	2	4	0	0	6
1983	0	3	1	0	0	4
1984	0	2	5	0	0	7
1985	0	3	5	0	0	8
1986	0	6	11	0	0	17
1987	0	2	14	0	0	16
1988	0	8	10	0	0	18
1989	0	15	12	0	0	27
1990	0	30	13	0	0	43
1991	2	25	18	0	0	45
1992	2	23	25	0	0	50
1993	3	95	30	0	0	128
1994	3	166	44	0	0	213
1995	11	124	22	0	0	157
1996	5	129	32	0	0	166
1997	7	163	51	0	0	221
1998	6	195	40	0	0	241
1999	4	119	24	0	0	147
2000	11	229	40	0	0	280
2001	8	186	38	0	0	232
2002	5	177	53	0	0	235
2003	8	294	55	0	0	357
2004	3	353	98	0	0	454
2005	6	266	87	0	0	359
2006	5	253	134	0	0	392
2007	4	212	150	0	0	366
2008	6	294	183	0	0	483
2009	8	172	229	0	0	409
2010	7	182	383	0	0	572
2011	5	89	396	0	0	490
2012	12	483	304	0	0	799
2013	36	622	391	0	0	1049
2014	38	798	341	0	0	1177
2015	40	966	461	0	1	1468
2016	56	1105	500	0	0	1661
2017	43	1379	570	0	0	1992
2018	50	1543	612	0	0	2205
2019	55	1601	652	0	0	2308
2020	29	1879	866	0	0	2774
2021	36	1752	792	0	0	2580
2022	34	1770	641	0	0	2445
2023	4	1	36	0	0	41
2024	2	1	33	0	0	36
Total	556	17734	8431	0	1	26722