CREATE TABLE table_20602 ("Country" TEXT, "Donor payment" TEXT, "Children per donor" TEXT, "Donor anonymity" TEXT, "Allowed recipients" TEXT)

What are the children per donor in the country where the allowed recipients are married or in cohabitation?
SELECT "Children per donor" FROM table_20602 WHERE "Allowed recipients" = 'Married or in cohabitation'
SELECT "Children per donor" FROM "table_20602" WHERE "Allowed recipients" = 'Married or in cohabitation'