Calculate the ratio between the number of representatives in Alabama and the number of representatives in Illinois.
"Alabama" and "Illinois" are both state; Ratio = Divide (Count(state = 'Alabama'), Count(state = 'Illinois'))
SELECT CAST(COUNT(CASE WHEN state = 'Alabama' THEN cognress_rep_id ELSE NULL END) AS REAL) / COUNT(CASE WHEN state = 'Illinois' THEN cognress_rep_id ELSE NULL END) FROM congress