*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19751
19760
19770
19780
19790
19801
19810
19820
19830
19840
19850
19860
19870
19880
19890
19901
19910
19920
19930
19940
19951
19961
19970
19980
19994
20000
20010
20024
20030
20040
20050
20060
20070
20080
20090
20101
20110
20120
20131
20140
20151
20162
20171
20180
20190
20200
20211
20222
20232
20240
Total27