???? ????? ??????? ??????: ???? ???? ??????? ?????? ?????? ??? ????? ???????? – ????? ???? ??????? ?? ???????? ????? ???? – ?? ???? ?? 80% ?? ???? ???????? ?????? ????? ??????? ?????? ?????? ??? ???? ?????????? ?? ?? ????? ??????? ????????? ????? ??????? ?????? ?????? ????? ??????? ?????? ?????????. ???? ???? ???