*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19741
19750
19760
19770
19780
19790
19800
19811
19820
19830
19840
19850
19860
19870
19880
19890
19900
19911
19920
19930
19941
19951
19960
19970
19980
19990
20000
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20131
20140
201522
20161
20171
20180
20192
20201
20214
20222
Total41