How many recipients of the Primetime Emmy Award category that were born in the USA? Find the percentage of Americans in the total number of the country.
born in the USA refers to birth_country = 'USA'; recipients refers to person = 'recipients'; percentage refers to DIVIDE(COUNT(birth_country = 'USA'), count(award_id))
SELECT SUM(CASE WHEN T1.birth_country = 'USA' THEN 1 ELSE 0 END) AS num , CAST(SUM(CASE WHEN T1.birth_country = 'USA' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(*) FROM Person AS T1 INNER JOIN Award AS T2 ON T1.name = T2.person WHERE T2.award_category = 'Primetime Emmy' AND T2.person = 'Dan Castellaneta';