CREATE TABLE table_28571 ("Name" TEXT, "Population  ( 2011 ) " FLOAT, "Population  ( 2006 ) " FLOAT, "Change  ( % ) " TEXT, "Area  ( km\\u00b2 ) " TEXT, "Population density" TEXT)

What is every value for area for population density of 100.8?
SELECT "Area (km\u00b2)" FROM table_28571 WHERE "Population density" = '100.8'
SELECT "Area (km\u00b2)" FROM "table_28571" WHERE "Population density" = '100.8'