????? ??? ???? ??? ???? 20 ????? ??????? ?? ????? ???? ???? ?? 70%. ??????? ?????? ?? ??????? ??????? ?? ???? ???? ??????? ???????? ??? ????? ??????? ???? ????????. ???? ??????? ???? ?????? ?????? ?? ??????? ??????? ???????? ????? ????? ?????? ??????? ?????. ??? ???? ????? ?????? ????? ???? ???? ?