*Excludes Observations that spanned multiple years

	B	b	t	W	w
Pre 1970	5	2	11	0	0	18
1970	0	0	3	0	0	3
1971	0	2	0	0	0	2
1972	0	1	0	0	0	1
1973	0	0	2	0	0	2
1974	0	0	1	0	0	1
1975	1	15	2	0	0	18
1976	0	2	3	0	0	5
1977	0	0	9	0	0	9
1978	0	0	6	0	0	6
1979	0	6	6	0	0	12
1980	0	3	7	0	0	10
1981	0	0	5	0	0	5
1982	0	1	6	0	0	7
1983	0	1	7	0	0	8
1984	0	1	3	0	0	4
1985	0	1	3	0	0	4
1986	0	7	2	0	0	9
1987	1	1	3	0	0	5
1988	1	12	15	0	0	28
1989	1	13	16	0	0	30
1990	2	26	9	0	0	37
1991	8	10	4	0	0	22
1992	0	7	9	0	0	16
1993	1	25	22	0	0	48
1994	0	46	29	0	0	75
1995	1	111	11	0	0	123
1996	6	57	16	0	0	79
1997	0	577	14	0	0	591
1998	4	407	37	0	0	448
1999	1	452	24	0	0	477
2000	0	449	17	0	0	466
2001	1	332	9	0	0	342
2002	0	539	46	0	0	585
2003	1	754	39	0	0	794
2004	0	575	51	0	0	626
2005	3	485	66	0	0	554
2006	6	595	124	0	0	725
2007	3	494	52	0	0	549
2008	2	312	59	0	0	373
2009	2	397	98	0	0	497
2010	3	447	69	0	0	519
2011	4	487	127	0	0	618
2012	7	852	160	0	0	1019
2013	1	357	123	0	0	481
2014	0	322	36	0	0	358
2015	0	363	44	0	0	407
2016	1	481	104	0	0	586
2017	1	365	85	0	0	451
2018	3	424	69	0	0	496
2019	1	279	57	0	0	337
2020	5	394	163	0	0	562
2021	3	372	83	0	0	458
2022	0	425	111	0	0	536
2023	0	0	1	0	0	1
Total	79	12286	2078	0	0	14443