*Excludes Observations that spanned multiple years

Pre 1970123
19700
19710
19720
19731
19743
19755
19761
19770
19781
19791
19801
19810
19820
19830
19840
19854
19860
19870
19882
19894
19900
19910
19920
19930
19941
19950
19961
19976
19981
19991
20002
20016
20023
20033
20042
20054
200620
20074
20089
200910
201015
201113
201224
201359
201414
201518
201616
201723
201842
201950
202028
202141
202278
202354
202452
Total746