请教这题的12个月内收益是指什么？<br>
Prices and yields: A six-year French government bond makes annual coupon payments of 5% and offers a yields of 3% annually compounded.Suppose that one year later the bond still yields 3%. What return has the bondholder earned over the 12-month period?Now suppose that the bond yields 2%at the end of the year.What return would the bondholder earn in this case?<br>