*Excludes Observations that spanned multiple years

Pre 197027
19701
19714
197215
19734
19740
19750
19762
19771
19780
19791
19800
19810
19820
19831
19840
19850
19861
19875
19880
19892
19901
19913
19922
19932
19941
19953
19962
19970
19983
199921
200013
20012
20021
20031
20041
20050
20060
20071
20080
20090
20100
20111
20120
20130
20141
20151
20160
20173
20180
Total127