*Excludes Observations that spanned multiple years

Pre 19706
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19813
19820
19830
19841
19850
19863
19870
19880
19890
19900
19914
19923
199310
19945
19951
19962
19970
19980
19991
20003
20010
20020
20031
20040
20050
20060
20071
20084
20094
20100
20110
20121
20131
20140
20150
20160
20170
20181
20191
20201
20211
20221
20231
20240
Total60