*Excludes Observations that spanned multiple years

Pre 19705
19700
19712
19720
19731
19740
19751
19762
19770
19780
19790
19800
19810
19820
19830
19840
19851
19860
19872
19883
19894
19900
19910
19921
19930
19948
19950
19961
19970
19981
19990
20000
20010
20020
20030
20040
20053
20062
20070
20080
20096
20101
20112
20120
201321
20142
20151
20163
20175
20184
20190
20201
202115
20223
20230
20240
Total101