Year Sterling (millions) 2011-12-31 22747 2012-12-31 24861 2013-12-31 24931 2014-12-31 25407 2015-12-31 28705 2016-12-31 30647 2017-12-31 36901 2018-12-31 42988 2019-12-31 41859 2020-12-31 56251 2021-12-31 58191 2022-12-31 59268 2023-12-31 55708