*Excludes Observations that spanned multiple years

Pre 197015
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19801
19810
19823
19831
19840
19850
198662
19870
19881
198928
19900
199124
19920
19930
19940
19951
199661
19971
199827
19990
2000274
2001156
20020
2003112
200438
200546
20067
20079
20082
20097
20104
20113
20128
20133
20144
201511
201616
20170
20184
20194
20201
20212
20220
202313
20240
Total949