*Excludes Observations that spanned multiple years

Pre 19708
19700
19713
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19821
19830
19840
19850
19868
19878
198824
19894
199010
199119
199226
199328
19943
199538
199626
199739
19980
199914
20003
200111
200210
20030
20047
20051
20060
20070
20083
20093
20102
20114
20122
20131
20140
20152
20160
20170
20181
201912
20205
202112
20220
20236
20248
Total352