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