*Excludes Observations that spanned multiple years

Pre 19707
19700
19711
19720
19731
19740
19750
19760
19770
19780
19791
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19900
19912
19921
19933
19943
19951
19960
19972
19980
19990
20000
20010
20021
20030
20041
20053
20061
20073
20082
20090
20102
20111
20120
20132
20141
20150
20161
201711
20187
20195
20207
20217
20221
20230
20240
Total78