*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	0	1	4	0	0	5
1970	0	0	1	0	0	1
1971	0	1	0	0	0	1
1972	0	0	0	0	1	1
1973	0	0	1	0	0	1
1974	2	1	1	0	0	4
1975	0	1	0	0	0	1
1976	0	3	1	0	0	4
1977	0	0	1	0	0	1
1978	0	1	1	0	0	2
1979	0	2	0	0	0	2
1980	0	0	0	0	0	0
1981	0	1	0	0	0	1
1982	0	0	3	0	0	3
1983	0	2	1	0	1	4
1984	0	2	0	0	1	3
1985	0	2	2	0	0	4
1986	0	0	9	0	0	9
1987	0	4	6	0	0	10
1988	0	4	9	0	0	13
1989	3	6	14	0	0	23
1990	4	17	11	0	0	32
1991	4	7	14	0	0	25
1992	9	13	82	0	0	104
1993	8	30	110	0	0	148
1994	10	72	194	0	0	276
1995	9	35	172	0	2	218
1996	2	34	128	0	0	164
1997	9	49	43	0	0	101
1998	4	25	118	0	0	147
1999	1	21	26	0	0	48
2000	7	47	159	0	0	213
2001	2	17	92	0	1	112
2002	4	28	145	0	0	177
2003	15	36	143	0	0	194
2004	3	45	271	0	0	319
2005	5	37	118	0	0	160
2006	4	38	95	0	0	137
2007	4	40	134	0	0	178
2008	2	90	151	0	0	243
2009	2	21	110	0	0	133
2010	9	102	166	0	2	279
2011	2	76	121	0	0	199
2012	11	168	86	0	0	265
2013	17	272	117	0	0	406
2014	18	287	158	0	0	463
2015	21	413	221	0	0	655
2016	19	487	295	0	0	801
2017	28	401	214	0	0	643
2018	29	382	217	0	0	628
2019	31	377	264	0	0	672
2020	17	435	353	0	0	805
2021	21	489	317	0	0	827
2022	11	498	246	0	0	755
2023	0	0	3	0	0	3
Total	347	5120	5148	0	8	10623