*Excludes Observations that spanned multiple years

Pre 197020
19701
19710
19720
19731
19740
19750
19760
19771
19781
19790
19801
19811
19821
19830
19841
19850
19860
19871
19880
19890
19902
19913
19923
19933
19941
19953
19963
19972
19984
19994
20001
20010
20020
20031
20040
20052
20060
20076
200810
20094
20104
20111
20122
20133
20143
20152
20162
20171
20182
20192
20202
20210
20221
20231
20240
Total107