*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
197210
19730
19740
19751
19760
19772
19780
19792
19802
19810
19820
19830
19841
19851
19860
19870
19880
19890
19901
19910
19929
19939
19944
19959
19962
19970
19980
19990
20000
20010
20020
20030
20040
20054
20061
20070
20081
20090
20107
201128
20122
20138
20143
20151
201611
20173
20185
201923
202025
202125
202234
20238
20240
Total243