*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
2002112
200340
200436
200530
200654
200728
200863
2009103
2010100
2011120
201298
201391
2014101
201564
201656
201764
2018119
2019138
202060
202193
202294
202348
202462
Total2721