CREATE TABLE table_20522 ("Member State" CLOB, "Population in millions" CLOB, "Population % of EU" CLOB, "Area km 2" FLOAT, "Area % of EU" CLOB, "Pop. density People/km 2" CLOB)

Name the number of area km 2 for population density is 87
SELECT COUNT("Area km 2") FROM table_20522 WHERE "Pop. density People/km 2" = '87'
SELECT COUNT("Area km 2") FROM "table_20522" WHERE "Pop. density People/km 2" = '87'