*Excludes Observations that spanned multiple years

Pre 19701
19700
19711
19720
19732
19742
19752
19761
19772
19781
19790
19802
19812
19824
19835
19841
19851
19861
19870
19880
19890
19901
19912
19921
19934
19946
199541
19967
19970
199818
19990
20004
20011
20020
20030
20040
20051
20061
20070
20082
20094
20102
20114
20121
20131
20142
20151
20163
20179
20181
20196
20201
20210
20220
20231
20240
Total153