?? ????? ?? ??? ??? ??? ???. ?? 2, 3? ????? ??? ???? ?? ??? ?? ????? ???? ??? ??.
??? ????? 0.03% ???? ? ???? ??(0.33%) ??(0.31%) ??(0.23%), ??(0.21%), ??(0.20%) ???(0.18%) ? ???? ???? ????? ???. ???? ??? ??? ???? ?? 3??? ??? ????. 3?? 28??? ? ??? 1000?? ?? 1?1000?～1?2000????.
?? ??(―0.01%) ???(―0.15%)? ??? ?????. ??? ????? 31??? ? ??? 500?? ??? 1?9000?～2?2000????.
??? ???? 0.33% ????. ??? 30????? ? ??? 1000???? ??? ?? ??(0.65%)? ???? ????? ??(0.15%) ??(0.10%) ??(0.00%) ??(―0.01%)? ? ??? ???. ???? ??? ???? ?? 40???(0.68%), 30???(0.46%)?? ?? ???? ???. ???? ??(0.67%) ??(0.30%) ??(0.23%) ??(0.21%) ??(0.11%) ??? ???? ???. ??? ??? ????? 31??? ? ? ? 1000?? ?? 7500?～8000?? ???.
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