CREATE TABLE table_20520 ("Member State" TEXT, "Population in millions" TEXT, "Population % of EU" TEXT, "Area km 2" FLOAT, "Area % of EU" TEXT, "Pop. density People/km 2" TEXT)

Name the population density where population % is 1.1% for slovakia
SELECT "Pop. density People/km 2" FROM table_20520 WHERE "Population % of EU" = '1.1%' AND "Member State" = 'Slovakia'
SELECT "Pop. density People/km 2" FROM "table_20520" WHERE "Member State" = 'Slovakia' AND "Population % of EU" = '1.1%'