*Excludes Observations that spanned multiple years

Pre 19701
19701
19710
19720
19730
19740
19750
19760
19770
19781
19790
19800
19810
19820
19830
19841
19850
19863
19871
19880
19895
19900
19911
19920
19935
19942
19954
19963
19970
19981
19990
20000
20010
20021
20031
20042
20050
20060
20070
20080
20091
20100
20111
20121
20130
20140
20150
20160
20170
20180
20190
20200
20210
20220
20232
20240
Total38