*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19811
19820
19834
19840
19850
19861
19870
19881
19891
19900
19911
199216
19936
19944
19951
19961
19970
19980
19990
20000
20010
20020
20031
20041
20057
20060
20070
20082
20091
20100
20110
20121
20130
20140
20150
20160
20170
20180
20190
20200
20210
20220
20230
20240
Total53