CREATE TABLE table_1630 ("Rank" FLOAT, "Administrative Division" TEXT, "Area  ( km\\u00b2 ) " FLOAT, "Area  ( sq mi ) " FLOAT, "National Share  ( % ) " TEXT, "Comparable Country" TEXT)

What is the national share of the country whose area is 148064 km^2?
SELECT "National Share (%)" FROM table_1630 WHERE "Area (km\u00b2)" = '148064'
SELECT "National Share (%)" FROM "table_1630" WHERE "Area (km\u00b2)" = '148064'