*Excludes Observations that spanned multiple years

Pre 197052
19701
19710
19720
19733
19743
19754
19762
19770
19782
19792
19803
19811
19824
19835
19841
19854
19860
19870
19880
19892
19902
19912
19923
19930
19943
19954
19960
19972
19985
19994
200048
2001261
200270
200310
200457
200520
200674
20072
20088
20099
201014
201125
201211
201320
201430
201566
201675
2017120
201834
201986
202059
202127
202227
202369
202410
Total1346