*Excludes Observations that spanned multiple years

Pre 19705
19700
19711
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19822
19830
19840
198535
198619
198716
198882
198911
19906
199136
199215
199325
199412
1995122
199682
199755
19985
199919
200015
200119
20026
200329
200428
200518
200630
200711
200826
200927
201022
201122
201222
201328
201429
201524
201631
201718
201823
201925
20207
202123
20226
20237
20244
Total1048