*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19751
19760
19770
19780
19790
19800
19812
19820
19831
19841
19851
19860
19870
19881
19894
19903
19910
19923
19932
19941
19952
19960
19970
19980
19990
20000
20010
20022
20031
20041
20050
20060
20070
20081
20090
20100
20110
20120
20130
20140
20150
20161
20173
20180
20190
20200
20210
20220
20230
20240
Total33