*Excludes Observations that spanned multiple years

Pre 197067
19703
19710
19720
19732
19746
19752
19765
19770
19787
19791
19802
19811
19820
19832
19842
19853
19860
19871
19881
19891
19901
19918
19923
19933
19943
199526
199614
199718
199828
199925
200013
20015
200295
200340
200488
2005194
200621
200763
2008416
2009241
2010309
201132
201241
2013121
201426
20150
201623
20170
Total1963