Year	Sterling
1997-12-31	10902
1998-12-31	13437
1999-12-31	14236
2000-12-31	15366
2001-12-31	17484
2002-12-31	20258
2003-12-31	22656
2004-12-31	24383
2005-12-31	28428
2006-12-31	33331
2007-12-31	36580
2008-12-31	33600
2009-12-31	35714
2010-12-31	35422
2011-12-31	31238
2012-12-31	32339
2013-12-31	35586
2014-12-31	39318
2015-12-31	43804
2016-12-31	46947
2017-12-31	52524
2018-12-31	56643
2019-12-31	56446