*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19751
19760
19770
19780
19791
19800
19810
19820
19836
19841
19850
19860
19874
19881
19892
19900
19910
19920
19933
19940
19951
19960
19970
19980
19990
20000
20010
20020
20030
20041
20050
20061
20070
20084
20090
20100
20111
20120
20130
20142
20150
20161
20170
20181
20193
20201
20214
20223
20233
20240
Total48