*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19731
19740
19751
19761
19770
19780
19791
19803
19811
19823
19830
19840
19852
19860
19871
19882
19891
19900
19910
19923
19936
19944
19950
19962
19970
19980
19995
20001
200127
20022
20030
20040
20051
20063
20071
20083
20094
20100
20113
20120
201316
20142
20159
20166
201710
201819
201911
20205
20219
202219
202360
20241
Total250