No chart image found

*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19873
198827
19890
19907
19914
19927
199313
19942
199510
19960
19970
19980
19994
20008
20010
20022
20031
20040
20051
20060
20070
20080
20090
20101
20112
20122
20131
20140
20150
20162
20171
201812
201918
202018
202114
202211
20238
20240
Total182