Year Sterling (millions) 2011-12-31 7876 2012-12-31 7852 2013-12-31 5995 2014-12-31 5599 2015-12-31 5570 2016-12-31 5683 2017-12-31 5631 2018-12-31 5602 2019-12-31 5427 2020-12-31 10590 2021-12-31 10359 2022-12-31 9526 2023-12-31 8427