what is the lowest number of live births when the crude birth rate (per 1000) is more than 22.1, the crude death rate (per 1000) is less than 5.5, the average population (x1000) is 2,401, and the natural change is more than 45,272?
SELECT MIN Live births FROM table WHERE Crude birth rate (per 1000) > 22.1 AND Crude death rate (per 1000) < 5.5 AND Average population (x 1000) = 2,401 AND Natural change > 45,272