CREATE TABLE table_2076516_1 (enrollment__2012_ INT, school VARCHAR)

When university of north carolina at charlotte is the school what is the lowest enrollment in 2012?
SELECT MIN(enrollment__2012_) FROM table_2076516_1 WHERE school = "University of North Carolina at Charlotte"
SELECT MIN("enrollment__2012_") FROM "table_2076516_1" WHERE "University of North Carolina at Charlotte" = "school"