If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回12%票率长期债存在话，也会超过票面价值。

Government-debt security with a coupon and original maturity of more than 10 years. Interest is paid semiannually.

原始有效期高于十年并带有票政府债，利每半年支付。