*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19741
19752
19761
19770
19783
19791
19801
19811
19822
19830
19841
19850
19861
19870
19880
19890
19900
19916
19929
199316
19941
19955
19962
19971
19980
19990
20000
20011
20024
20033
20041
20050
20061
20070
20080
20090
20100
20110
20120
20133
20144
20151
20161
20172
201813
20195
20200
20210
20220
Total94