*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19721
19732
19740
19752
19764
19770
19780
19790
19800
19810
19822
19830
19841
19850
19860
19870
19880
19890
19901
19911
19921
19932
19941
19954
19960
19970
19985
19992
20000
20019
20024
20031
20040
20050
20060
20070
20080
20090
20100
20112
20120
20130
20140
20150
20164
20170
20183
20190
20200
20211
20223
20230
20241
Total58