*Excludes Observations that spanned multiple years

Pre 197042
19700
19710
19720
19730
19740
19750
19761
19778
19783
19790
19800
19810
19820
19830
19840
19850
19863
19870
19880
19890
19901
19910
19920
19930
19940
19950
19960
19970
19980
19990
20001
20011
20020
20033
20040
20050
20060
20070
20080
20090
20100
20111
20120
20130
20140
20150
20162
20171
20181
20190
20200
20210
20221
20230
20240
Total69