????? ????? ??? ????? ????‘??? α??'? ????? 11? ???.
? ??? 6???? ??? ? ??? 6???? ???? ?? ?? 0.15%? ????? ???? ????? ?? ??? ??? ????? ????? ??? ????.
????? ? 1??????? 6???? ??? ?? ????? ??? ?????? ?? 1?? 0.05%, 1??? 2???? 0.1%, 2???? 0.15%???? ????? ????.