Median Age is the normal age of your population. 50 percent of your population is more mature and the opposite 50 % is younger. Gender is self-claimed by men and women when requested with regards to their sex at beginning.???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 ?ún