*Excludes Observations that spanned multiple years

Pre 1970231
197027
197144
197231
197330
197436
197535
197643
197725
197832
197927
198037
198149
198242
198331
198430
198541
198634
198724
198838
198937
199042
199121
199259
199370
199453
1995104
199699
1997105
199873
199954
200082
200160
200262
200330
200432
200530
200632
200718
200821
200936
201019
201151
201259
201355
201410
201514
20168
20176
Total2229