*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19762
19770
19780
19790
19800
19810
19820
19830
19840
19850
19861
19870
19880
19890
19900
19910
19920
19930
19941
19952
19960
19972
19982
19990
20001
20019
20021
20030
20041
20050
20060
20073
20080
20092
20100
20112
20120
20134
201416
20152
201613
20173
201841
201947
202045
202144
202240
202319
20240
Total304