The Spanish treasury sold on Thursday treasury bonds valued at 5.582 billion euros (7.683 billion U.S. dollars) at lower interest rates, registering a high demand of 10.723 billion euros according to the treasury. A total of 2.726 billion euros worth of bonds with 5-year lifespan carried an average interest rate of 1.869 percent, which was below the 1.991 percent of the previous issue held on March 20. A further 1.630 billion euros worth of treasury bonds with 10-year lifespan carried an average interest rate of 3.291 percent, below the previous 3.344 percent. The remaining 1.226 billion euros worth of treasury bonds with 12-year lifespan fetched an average interest rate of 3.553 percent, which was below the 3.977 percent of the previous issue. After the auction the IBEX-35 stock market in Madrid remained calm reaching 10,530 points. Spain's 10-year bond interest rate stood at 3.310 percent while Spain's risk premium stood at 168 points.