*Excludes Observations that spanned multiple years

Pre 197044
19701
19710
19720
19730
19740
19751
19761
19771
19780
19791
19800
19810
19821
19837
19841
198513
19866
19879
19888
198913
19903
19913
19923
19934
19944
19950
199612
19978
19985
19995
20007
20015
20023
20039
200417
200529
200646
200714
20085
200936
2010101
201194
201266
201359
201457
201542
201633
201727
201839
201919
202020
202118
20225
20230
20240
Total905