*Excludes Observations that spanned multiple years

Pre 19704
19700
19710
19720
19730
19741
19750
19762
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19882
198916
19904
19910
19920
19930
19940
19950
19964
19970
19983
19992
20000
20010
20020
20030
20047
20053
20063
20076
200811
20097
20103
20113
20121
201314
20142
20151
20160
20170
20180
20199
20201
20212
20222
20230
20241
Total114