???(―0.53%)? ??????? ???? ???? ?? ??. ??? ?? 2? 19??? 1500?? ??? 6?2000?～6?5000?? ??? ???(―0.12%) ??? ????4?? 31??? 2000?? ??? 5?5000?～5?8000?? ?.

?????? ??? ??? ???? ??? ??? ???? ?? ???(0.62%)? ??? ?? ? ??? ??? ????? ??(0.16%) ? ?? ?? ??? ?? ??? ????. ???(0.15%) ???(0.12%) ???(0.12%)? ??? ????.

??? ???? ???? ?? ????? ?? ??? ?????? 40??? ???? 4000?? ?? 7?～8?5000?? ???, ?? ??? ???????? 30??? 1000?? ?? 3?4000?????. ??? ??? ??(0.04%) ??(0.00%)? ?????? ??(―0.02%) ??(―0.05%) ??(―0.06%)? ??? ???? ????. ???? ??(0.34%) ??(0.21%)? ???? ?? ??(0.08%), ??(0.05%)? ??? ???.

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