*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19761
19770
19780
19790
19801
19810
19820
19830
19840
19850
19860
19870
19882
19890
19901
19910
19924
19930
19940
19950
19962
19970
19980
19991
20000
20010
20020
20030
20040
20050
20060
20070
20080
20091
201013
201116
20122
20131
20140
20150
20160
20170
20180
20192
20200
20210
20221
20233
20240
Total52