*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19761
19770
19780
19791
19800
19810
19820
19832
19841
19850
19860
19870
19881
19890
19902
19910
19921
19932
19940
19950
19963
19970
19981
19990
20000
20010
20020
20030
20040
20050
20060
20070
20086
20092
20100
20110
20120
20131
20140
20150
20160
20171
20180
20190
20200
20210
20220
20231
20240
Total29