??? ????????????? ????? ?? ???????? ?????? ????? ?????????????? ???????????? ??? ??? ??????, ????? ????? ?????? ?????????? ????????? ????? ????? ????? ??????????? ??? ???????, ??????????? ??? ????????, ?????????, ?????????? ??? ????? ?????????, ??? ????????????? ??? ?????????????. ??? ???????? ??? ??? ????????????? ??? ???? ??? ??? ???????? ????, ??????????? ????? 15% ?? 30% ??? ????? ?????. ?? ?????? ?????????????? ??? ??? ????????????? ????? ??????????????, ???????????????, ?????????????, ???????????????, ???????? ??????? ??? ???????? ???????. ?????? ???, ?????????????? (??? ?????? ??????????) ????? ?? ????? ???????, ??????????? ????? 60% ?? 80% ??? ?? ????? ??? ?????????????, ??????????? ???? ??????????????, ??? ?????? ???????? ???????????? ????? ?? ???????? ??????? ????????.