1. countries::country_reference_list
    Conversion table
    csv| xlsx| json| ndjson| rda| rds
    data.table|505 x 63
  2. countries::country_reference_list_long
    Conversion table in long format
    csv| xlsx| json| ndjson| rda| rds
    tbl_df|12182 x 3
  3. countries::world
    World map data
    csv| xlsx| json| ndjson| rda| rds
    data.frame|99338 x 6