???? A?? OCI? ??? ????? ???? 2? ??? ??? ???? ??? ????.
30? ????(IB) ??? ??? OCI? 2?? 300? ? ??? 530? ?, 3?? 200? ? ??? 800? ?? ?? ? 500? ? ??? 1330? ?? ????? ???. OCI? ?? ????????????(????) ?? ±50bp(???????, 1bp=0.01%???)?? ?? ????? ??? 2??? 44bp, 3??? 17bp? ????? ???. ??? 7? ???? ??? ??? OCI? ?? 800? ?? ????? ???? ??.
1959? ??????? ??? ??? OCI? 2001? ????? ??? ?? 2009? ???????? OCI? ???? ????. OCI? ????? ? ?????? ??, ???? ?? ???? ??.