*Excludes Observations that spanned multiple years

Pre 19702
19701
19710
19720
19730
19740
19750
19760
19770
19780
19794
19801
19810
19820
19830
19842
19853
19862
19875
198827
19891
199013
1991100
199246
199315
19948
199520
199613
199716
19983
19995
200020
200111
20024
20037
20040
20051
200611
20074
200811
20097
20100
20115
20121
20133
20141
20150
20168
20174
20187
201912
20202
202117
202215
202321
20240
Total459