*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
19883
19892
19900
19910
19920
19933
19942
19953
19960
19970
19980
19992
20002
20012
20020
20030
20040
20050
20061
20070
20082
20094
20102
20117
20123
20133
20148
20152
20162
20170
20184
201917
20208
20211
20221
20234
20244
Total95