*Excludes Observations that spanned multiple years

Pre 1970118
19703
19710
19721
19732
19746
19751
19764
19776
19787
197921
198016
198110
198214
19836
198410
19854
19868
19873
19881
19894
19903
19915
19925
199311
19949
199526
199634
199740
199852
199945
200035
200113
200250
200344
200486
200574
200657
200749
2008124
2009151
201052
201139
201246
201335
201420
201519
201612
20171
Total1382