*Excludes Observations that spanned multiple years

Pre 19703
19700
19711
19720
19730
19740
19751
19760
19772
19780
19791
19801
19810
19821
19830
19840
19850
19865
19871
19887
19891
19907
19914
19921
19930
19942
19956
199611
19979
19980
199919
200022
200122
20023
20032
20044
20050
20065
20071
20082
20091
20101
201114
20122
20136
20146
20150
20161
20172
20182
20192
20204
20212
20224
20236
20240
Total197