*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19726
19730
19740
19752
19761
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19900
19911
19922
19932
19940
19950
19960
19970
19980
19990
20000
20013
20020
20038
20040
20050
20068
20075
20086
20098
201010
20110
20120
20130
20140
20150
20160
20171
20180
20190
20200
20210
20220
20231
20240
Total65