*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19731
19740
19750
19761
19770
19780
19792
19800
19810
19822
19832
19840
19850
19862
19871
19881
19890
19903
19917
199211
19937
19945
199512
19960
19979
19985
199911
20006
20015
20024
20035
20041
20051
20061
200718
200820
20096
20107
201112
201212
201312
20149
20152
201613
20176
20188
201917
202016
202117
202223
202323
202469
Total398