*Excludes Observations that spanned multiple years

Pre 197028
19700
19710
19720
19730
19740
19750
19760
19772
19780
19794
19800
19812
19820
19830
19843
19856
19861
19871
19882
19893
19903
19914
19921
19933
19946
19954
19962
19970
19982
19995
20006
20014
200210
200331
200432
200527
200662
200724
20089
200913
20104
20115
201219
20132
20143
201518
201629
20170
20180
20190
20200
20210
20220
20230
Total380