*Excludes Observations that spanned multiple years

Pre 197012
19701
19710
19720
19730
19741
19751
19761
19771
19781
19790
19800
19810
19821
19830
19840
19850
19861
19870
19880
19891
19900
19910
19920
19930
19940
19950
19961
19970
19980
19990
20000
20010
20020
20031
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20181
20190
20200
20212
20220
20230
20240
Total26