*Excludes Observations that spanned multiple years

Pre 19707
19700
19713
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19821
19830
19842
198516
198643
198731
198872
198934
199019
199160
199228
199330
199424
199586
199669
1997112
199831
199926
200024
200149
200210
200339
200434
200515
200626
200715
200833
200927
201028
201131
201233
201361
201429
201527
201636
201712
201824
201929
202017
202132
202213
20238
20241
Total1347