*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19751
19760
19770
19780
19791
19800
19810
19821
19830
19841
19851
19860
19870
19880
19890
19900
19911
19923
19935
19944
19952
19960
19972
19980
19990
20001
20018
20020
20033
20040
20050
20062
20075
20085
20099
201037
201128
20122
201317
20147
20156
201623
201746
201855
201955
202016
202133
202255
20236
20240
Total443