Year	Sterling (millions)
2011-12-31	12532
2012-12-31	13326
2013-12-31	15272
2014-12-31	17728
2015-12-31	15679
2016-12-31	16485
2017-12-31	18296
2018-12-31	18196
2019-12-31	18785
2020-12-31	25894
2021-12-31	26265
2022-12-31	27097
2023-12-31	28653