*Excludes Observations that spanned multiple years

Pre 19708
19700
19710
19720
19730
19740
19752
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19865
198715
19885
19890
19901
19912
19920
19930
19940
19953
19960
19973
19981
19995
20004
20010
20021
20031
20040
20052
20061
20071
20080
20093
20101
20111
20122
20132
20144
20152
20161
20173
20184
201920
202017
202117
20225
20238
20240
Total150