*Excludes Observations that spanned multiple years

Pre 197016
19700
19710
19720
19730
19741
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19871
19880
19890
19901
19910
19922
19931
19940
19950
19961
19970
19980
19990
20000
20010
20020
20030
20041
20051
20060
20070
20080
20090
20100
20110
20121
20131
20141
20152
20162
20170
20181
20191
20202
20215
20221
20233
20240
Total45