The London stock market continued to decline on Friday with the FTSE 100 index down by 59.11 points, or 1.17 percent, to 4,988.70 points, the third day of drop in a row. Shares in Royal Bank of Scotland Group dropped by 7.73 percent, the biggest loser of the day. And shares in Hunting, Enterprises Inns, Ashtead Group, Yell Group all declined by more than 6 percent at the end of day. 