*Excludes Observations that spanned multiple years

Pre 197019
19702
19710
19720
19730
19742
19750
19760
19770
19784
19791
19801
19810
19821
19831
19841
19851
19863
19871
19881
19890
19901
19911
19921
19930
19941
19957
19962
19977
19986
19994
20001
20013
20029
20036
200412
2005104
20066
200776
2008189
200977
2010194
201127
20121
201316
20142
20151
201621
20172
Total815