*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19752
19760
19770
19780
19791
19801
19810
19821
19830
19840
19850
19860
19870
19880
19890
19900
199115
19925
19934
19941
19955
19962
19970
19981
199910
200015
200114
20023
20030
20046
20050
20062
20077
200814
200916
201011
20115
20129
20135
20140
20150
20162
20176
20180
201916
202029
202112
202219
20238
20240
Total250