*Excludes Observations that spanned multiple years

Pre 19700
19701
19711
19720
19730
19741
19750
19764
19773
19780
19792
19802
19814
19821
19830
19842
19851
19860
19870
198815
19891
19903
19910
19927
19939
19945
19950
19964
199715
19980
19991
20002
200129
20027
20031
20041
20050
20063
20070
20084
20091
201015
20118
20123
201317
20146
201513
201626
201725
201814
201926
202029
202130
202221
202338
20240
Total401