*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19752
19760
19770
19780
19790
19800
19810
19821
19830
19840
19850
19860
19870
19880
19891
19900
19910
19921
19932
19940
19950
19961
19970
19980
19990
20000
20010
20020
20030
20040
20050
20060
20072
20084
20092
20100
20110
20121
20130
20140
20150
20160
20170
20180
20190
20200
20210
20220
20230
20240
Total19