Unlike the nominal interest rate, the yield on debt securities outstanding indicates the interest actually received per annum.

In principle, only debt securities with an agreed maturity of more than four years pursuant to the terms of issue are included in the calculation of yields on debt securities. The yields of individual debt securitites are weighted by the amounts outstanding at market prices, using the Bundesbank reference prices or Xetra prices as the basis.

For more information on how yields are calculated, see paragraph "Computation of yields" in the explanatory notes on the tables of the Statistical Series Capital market indicators. 

Note: The time series keys of yields have changed. A comparison of the old and new keys can be found under Downloads.