Barclays has posted pre-tax profit of £5.9 billion for 2011, with the figure down 3% when compared with 2010. Credit impairment charges improved 8%, to £3.8 billion. At Barclays Capital, profit before tax fell 32% year-on-year and overall, the group’s pay and bonus pool shrank 26%, with the cash element of bonuses capped at £65,000. [...]