*Excludes Observations that spanned multiple years

Pre 19703
19700
19713
19720
19730
19740
19751
19760
19770
19780
19792
19800
19810
19821
19830
19840
19855
198612
198715
198824
19891
19900
199113
19920
19934
19940
199569
199615
199714
19988
199973
200083
200152
200225
20032
20040
20051
20061
20070
20083
20090
20102
20112
20120
20130
20140
20151
20165
201720
20187
201924
202016
20215
20222
202321
20242
Total537