Year Sterling (millions) 2011-12-31 7650 2012-12-31 7687 2013-12-31 5834 2014-12-31 5443 2015-12-31 5457 2016-12-31 5612 2017-12-31 5593 2018-12-31 5588 2019-12-31 5306 2020-12-31 10557 2021-12-31 10333 2022-12-31 9366 2023-12-31 8284