Quarter Sterling (millions), Seasonally adjusted 2010-03-31 1471 2010-06-30 1481 2010-09-30 1564 2010-12-31 1617 2011-03-31 1602 2011-06-30 1668 2011-09-30 1750 2011-12-31 1744 2012-03-31 1765 2012-06-30 1863 2012-09-30 1931 2012-12-31 1986 2013-03-31 2054 2013-06-30 1945 2013-09-30 2012