*Excludes Observations that spanned multiple years

Pre 197048
19700
19710
19721
19731
19740
19750
19760
197710
19782
19791
19800
19810
19821
19830
19841
19850
19861
19870
19880
19891
19903
19910
19920
19930
19940
19952
19962
19970
19980
19990
20000
20010
20020
20034
20040
20050
20060
20075
20085
20090
20100
20110
20120
20131
20141
20150
20165
20173
20180
20190
20200
20213
20220
20230
20240
Total101