*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	1	6	0	1	8
1970	0	0	0	0	0	0
1971	0	2	1	0	0	3
1972	0	0	0	0	0	0
1973	0	0	2	0	0	2
1974	0	0	1	0	0	1
1975	0	2	3	0	0	5
1976	0	1	3	0	0	4
1977	0	0	7	0	0	7
1978	0	0	1	0	0	1
1979	0	3	3	0	0	6
1980	0	3	1	0	0	4
1981	0	0	1	0	0	1
1982	0	0	8	0	0	8
1983	0	0	5	0	0	5
1984	0	0	2	0	0	2
1985	1	3	1	0	0	5
1986	0	2	7	0	0	9
1987	0	7	7	0	0	14
1988	0	8	7	0	0	15
1989	0	6	12	0	0	18
1990	2	24	9	0	0	35
1991	7	13	20	0	0	40
1992	2	14	11	0	0	27
1993	3	68	20	0	0	91
1994	3	182	27	0	0	212
1995	3	103	13	0	0	119
1996	10	127	12	0	0	149
1997	7	493	18	0	0	518
1998	2	509	33	0	0	544
1999	2	280	14	0	0	296
2000	2	458	35	0	0	495
2001	1	411	19	0	0	431
2002	0	374	61	0	1	436
2003	4	421	51	0	0	476
2004	1	561	35	0	0	597
2005	0	454	96	0	0	550
2006	2	461	66	0	0	529
2007	0	461	86	0	0	547
2008	0	208	127	0	0	335
2009	0	136	131	0	0	267
2010	1	247	177	0	0	425
2011	0	322	246	0	0	568
2012	0	762	300	0	0	1062
2013	3	768	458	0	0	1229
2014	2	856	430	0	0	1288
2015	5	942	616	0	0	1563
2016	3	1053	781	0	0	1837
2017	6	1222	767	0	0	1995
2018	10	1256	904	0	1	2171
2019	7	1306	1052	0	1	2366
2020	0	9	1	0	0	10
2021	0	0	1	0	0	1
Total	89	14539	6695	0	4	21327