*Excludes Observations that spanned multiple years

Pre 19705
19700
19710
19720
19730
19740
19750
19761
19770
19780
19790
19800
19810
19820
19832
19840
19850
19862
19871
19881
19890
19902
19918
19920
19930
199414
19953
19967
19970
19982
19990
20000
20010
20020
20030
20041
20050
20062
20070
20080
200933
201041
201127
201237
201338
201429
201529
201627
20171
20180
20190
20200
20210
20221
20230
20240
Total314