*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19780
19791
19800
19810
19820
19830
19840
19850
19861
19870
19880
19890
19900
19911
19920
19930
19944
19951
19960
19974
19981
19992
20000
20010
20020
20032
20041
20050
20060
20071
20080
20090
20101
20114
20125
201313
20140
20150
20160
20171
20180
20191
20200
20212
20220
20230
20240
Total47