*Excludes Observations that spanned multiple years

Pre 19704
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19833
19845
19850
19863
19870
19880
19890
19900
19911
19920
19931
19949
199523
19960
19971
19980
19990
20000
20010
20023
20033
20042
20050
20060
20070
20087
20090
20100
20111
20120
20133
20140
20150
20161
20170
20180
20190
20201
20211
20222
202310
20241
Total85