Although appealing to more refined tastes, art as a collectible has not always performed so profitably. During 2003, Sotheby's sold the Edgar Degas bronze sculpture Petite Danseuse de Quatorze Ans at auction for a price of $10401500. Unfortunately for the previous owner, he had purchased it in 1999 at a price of 12557500. What was his annual rate of return on this sculpture.