*Excludes Observations that spanned multiple years

Pre 197020
19700
19710
19720
19730
19741
19752
19760
19770
19780
19790
19800
19810
19822
19832
19840
19852
19860
19870
19880
19891
19900
19910
19920
19930
19940
19950
19960
19970
19981
19995
20001
20015
20020
20030
20042
20052
20065
20070
20080
20091
20100
20110
20120
20132
20143
20151
20160
20172
20183
20197
20205
2021102
202229
202320
202410
Total236