*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19742
19750
19761
19772
19780
19792
19801
19812
19820
19830
19842
19850
19860
19870
19880
19890
19900
19919
19925
199318
19944
19956
19960
19972
19980
19991
20001
20010
20020
20031
20040
20050
20061
20070
20086
20090
20101
20110
20122
20136
20141
20150
20164
201735
201843
201943
202018
202114
202228
202363
20240
Total324