- unitid
-
{"value"=>"3359938", "type"=>"local_mss"}
{"value"=>"902", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1999 December 31-2016 November 9", "type"=>"inclusive", "normal"=>"1999-12-31/2016-11-09"}
- unittitle
-
{"value"=>"United States of America"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1065 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"7164 megabytes", "unit"=>"megabytes"}]}
- date_start
-
1999-12-31
- keydate
-
1999-12-31
- date_end
-
2016-11-09
- date_inclusive_start
-
1999
- date_inclusive_end
-
2016
- extent_statement
-
7164 megabytes (1065 computer files)