*Excludes Observations that spanned multiple years

Pre 197035
197010
19711
19720
19730
19741
19753
19763
19779
19787
197916
198019
19813
19821
19831
19841
19851
19861
19871
19881
19890
19900
19910
19920
19931
19941
19953
19961
19973
19981
19991
20002
20012
20022
20030
200424
200511
20060
20070
200811
20097
20103
20113
20126
20130
20144
20151
20160
20170
Total201