*Excludes Observations that spanned multiple years

Pre 197020
19700
19710
19722
19732
19740
19752
19761
19770
19780
19794
19802
19812
19820
19831
19841
19851
19860
19873
19880
19891
19900
19910
19922
19931
19941
19954
19969
19977
19980
19992
20004
200111
20023
20034
20044
200512
20063
20073
20086
200987
201092
201122
20124
201313
201423
20155
20169
20177
20184
20196
20201
20216
2022126
20232
20241
Total526