*Excludes Observations that spanned multiple years

Pre 1970118
19703
19710
19721
19732
19746
19751
19764
19776
19787
197920
198014
198110
198214
19836
198410
19854
19868
19872
19881
19894
19903
19915
19925
199311
19949
199527
199634
199740
199853
199945
200034
200113
200249
200344
200486
200574
200658
200751
2008127
2009155
201054
201146
201251
201346
201429
201531
201621
201726
201821
201938
202031
202155
202240
Total1653