*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19741
19751
19760
19771
19780
19792
19804
19810
19821
19831
19843
19850
19860
19870
19880
19891
19902
19912
19921
19931
19941
19954
19962
19978
19984
19995
20003
200110
20020
20034
20045
20058
20065
20071
20088
20091
201045
201124
20123
201315
201416
201519
201628
201727
201846
201951
202037
202152
202244
202381
202413
Total592