*Excludes Observations that spanned multiple years

Pre 197052
19701
19710
19720
19733
19743
19754
19762
19770
19782
19792
19803
19812
19824
19835
19841
19854
19860
19870
19880
19892
19902
19912
19923
19930
19943
19954
19960
19972
19985
19994
200037
200134
200270
200310
200457
200520
200674
20072
20088
20099
201014
201125
201211
201320
201429
201566
201674
2017120
201828
201978
20205
20210
20220
Total906