*Excludes Observations that spanned multiple years

Pre 197022
197020
197128
197218
197316
197421
19754
19765
197727
197814
197945
19803
198159
19828
198355
198431
198528
19864
19870
19886
19892
199013
199112
199231
199360
199436
199524
199698
199738
199828
199927
200022
2001142
2002111
200340
200433
200527
200650
200723
200861
200997
201091
2011107
201288
201386
201493
201551
201628
201717
201816
201922
202015
Total2003