*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19882
19890
19901
199114
199269
19939
19940
199511
19960
19970
19980
199912
200013
200114
20020
20031
20043
20050
20060
20070
20080
20091
20105
20113
20120
20131
20141
20150
20161
20171
20180
20195
20202
20214
20222
20236
20240
Total184