, January 17, SPA -- The following selling rates for foreign currencies against Saudi Riyal based on average exchange rates quoted by the London market in terms of dollars are announced by the Saudi Arabian Monetary Agency (SAMA) here today. Currency Saudi Riyals US dollar 3.7500 Sterling pound 5.2260 Swiss franc 3.2774 Japanese yen 0.0417 Canadian dollar 2.9670 Euro 4.8559 The agency said the rates of US dollar are SAMA selling prices for banks. 1/8th percent is being added by banks for the first million us dollar and 1/16th percent for sums over one million US dollar.