*Excludes Observations that spanned multiple years

Pre 197017
19700
19713
19723
19731
19744
19750
19762
19772
19782
19793
19803
19813
19821
19831
19842
19851
19861
19871
19880
19890
19900
19910
19921
19931
19940
19950
19960
19971
19980
19990
20000
20010
20020
20032
20040
20050
20060
20070
20082
20094
20100
20110
20120
20130
20141
20150
20160
20170
20180
20190
20200
20210
20220
20230
20240
Total62