*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19880
19891
19909
19910
19920
19930
19943
19950
19960
19970
19980
19990
20000
20011
20021
20030
20041
20051
20061
20074
20085
20091
20100
20111
20122
20132
20141
20150
20161
20174
20180
20190
20202
20210
20220
20230
20240
Total44