CREATE TABLE table_name_88 (area__sq_mi_ INT, administrative_division VARCHAR, national_share___percentage_ VARCHAR)

What is the average area in square miles for the hunan administrative division with a national share less than 2.19%?
SELECT AVG(area__sq_mi_) FROM table_name_88 WHERE administrative_division = "hunan" AND national_share___percentage_ < 2.19
SELECT AVG("area__sq_mi_") FROM "table_name_88" WHERE "administrative_division" = "hunan" AND "national_share___percentage_" < 2.19