8,000,00010,000,00012,000,00014,000,00016,000,00018,000,00020,000,00022,000,00024,000,00026,000,00028,000,00030,000,00032,000,00034,000,00036,000,00038,000,00040,000,00042,000,0002006200720082009201020112012201320142015201620172018
Sotheby's
Christie's
in Swiss Francs