Barclays Capital, the investment-banking unit of Barclays Plc, increased its pay and bonuses per employee by about 93 percent in 2009, according to company filings. Royal Bank of Scotland Group Plc, the U.K.'s biggest government-owned bank, raised total compensation per employee by about 73 percent last year. Of the United Kingdom's three largest banks, HSBC Holdings Plc was the only one where pay declined slightly in its investment bank.