*Excludes Observations that spanned multiple years

Pre 19705
19700
19711
19720
19730
19745
19752
19765
19770
19780
19790
19800
19810
19820
19830
19840
19851
19860
19870
19880
19890
19906
199112
19923
19931
19945
199513
199622
19972
19981
19990
20000
20011
20020
20031
20045
20055
20067
20076
200830
200973
201057
201139
201239
201337
201428
201520
20169
20170
20180
20190
20201
20211
20221
20230
20240
Total444