*Excludes Observations that spanned multiple years

Pre 19704
19700
19710
19720
19730
19741
19751
19760
19773
19781
19796
19800
19810
19820
19830
19840
19850
19861
19870
19880
19890
19900
19910
19920
19930
19942
19950
19961
19970
19981
19994
20001
200111
20025
20035
200417
200578
200660
20079
20080
200913
201023
201123
20120
20130
20140
201522
20163
20170
20180
20190
20204
202111
20220
20230
20240
Total310