*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19731
19740
19750
19760
19770
19780
19790
19800
19810
19822
19830
19840
19852
19861
19870
19881
19891
19900
19910
19921
19931
19940
19954
19960
19970
19980
19992
20002
20016
20022
20032
20043
20050
20061
20072
20083
20090
20108
20113
20121
20130
20140
20150
20162
20170
20182
201916
20202
20213
20221
20233
20241
Total82