A security is purchased on 15/02/1999. It matures on 15/11/2007. The rate of interest is 5.75%. The price is 95.04287 currency units per 100 units of par value, the redemption value is 100 units. Interest is paid half-yearly (frequency = 2) and the basis is 0. How high is the yield?
一有价证券于 1999 年 2 月 15 日买入。到期日为 2007 年 11 月 15 日。利率为 5.75%。实际价格为每 100 个货币单位，面额为 95.04287 货币单位，偿还价格为 100 个货币单位。利息每半年支付一次（利息支付次数 = 2），basis 为 0。收益率为多少？