*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19851
19860
19870
19880
19890
19900
19910
19920
199316
19941
19951
19960
19971
19980
19990
20008
200111
20024
20031
20040
20050
20060
20070
200825
200911
20101
20110
20120
20130
20140
20150
20160
20171
20180
20190
20200
20210
20220
20230
20240
Total85