*Excludes Observations that spanned multiple years

Pre 19705
19700
19711
19720
197313
197450
197512
197612
19770
19782
19790
19800
19810
19820
19833
19840
19851
19861
19870
19880
19896
19904
19913
19923
19934
19941
19955
199614
19976
199825
199933
200089
200172
200295
2003112
200489
200570
200697
200788
200876
200961
201099
201185
201234
201353
20146
20150
20160
20170
Total1330