- unitid
-
{"value"=>"3397303", "type"=>"local_mss"}
{"value"=>"48", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1990s-2000s", "type"=>"inclusive", "normal"=>"1990/2009"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"11 computer file", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"169.0 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1990
- keydate
-
1990
- date_end
-
2009
- date_inclusive_start
-
1990
- date_inclusive_end
-
2009