*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
200434
200528
200652
200727
200862
2009100
201095
2011114
201295
201389
201499
201561
201644
201748
201892
2019116
202040
202167
202257
20230
Total2418