*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19752
19760
19770
19780
19790
19801
19810
19820
19830
19840
19850
19860
19874
19880
19891
19902
19910
19924
19930
19942
19953
19960
19970
19980
19990
20003
20011
20022
20030
20040
20050
20061
20070
20087
20091
20103
20110
20128
201323
20140
20150
20162
20170
20181
20190
20200
20211
20220
20230
20240
Total75