Median Age is the average age of the inhabitants. 50 % of your inhabitants is older and another 50 % is more youthful. Gender is self-noted by individuals when requested about their sexual intercourse at start.???có th??tr?i nghi?m ??nh cao cá c??c tr?c tuy?n và nh?ng ch?c n?ng ti?n l?i tuy?t v?i c?a OK9 thì ng??i ch?i c?n bi?t ?úng cách ????