*Excludes Observations that spanned multiple years

Pre 197020
19700
19711
19720
19730
19740
19750
19760
19771
19781
19792
19801
19810
19825
198312
19847
198511
198620
198719
198818
198918
199023
199120
199225
199314
199418
199513
199619
199710
199814
199911
200019
200112
200210
200312
200410
200517
200613
200714
20088
200925
201046
201153
201247
201342
201457
201541
201646
201742
201844
201937
202042
202130
202218
20230
20240
Total988