Quarter Sterling 2003-03-31 2160 2003-06-30 3127 2003-09-30 1737 2003-12-31 821 2004-03-31 5456 2004-06-30 684 2004-09-30 3545 2004-12-31 1281 2005-03-31 1245 2005-06-30 2514 2005-09-30 2326 2005-12-31 2817 2006-03-31 4942 2006-06-30 5931 2006-09-30 3972 2006-12-31 4517 2007-03-31 6071 2007-06-30 2922 2007-09-30 2670 2007-12-31 6391 2008-03-31 7328 2008-06-30 9971 2008-09-30 7711 2008-12-31 18729 2009-03-31 11571 2009-06-30 15589 2009-09-30 17749 2009-12-31 26959 2010-03-31 12669 2010-06-30 20488 2010-09-30 12351 2010-12-31 33962 2011-03-31 13025 2011-06-30 33729 2011-09-30 14604 2011-12-31 57675 2012-03-31 24900 2012-06-30 16232 2012-09-30 9204 2012-12-31 7180 2013-03-31 8212 2013-06-30 7801 2013-09-30 12023 2013-12-31 9775 2014-03-31 8130 2014-06-30 9098 2014-09-30 8289 2014-12-31 16019 2015-03-31 25674 2015-06-30 9020 2015-09-30 6314 2015-12-31 16948 2016-03-31 9476 2016-06-30 5428 2016-09-30 13197 2016-12-31 19955 2017-03-31 14471 2017-06-30 11195 2017-09-30 10371 2017-12-31 10971 2018-03-31 10304 2018-06-30 11811 2018-09-30 7421 2018-12-31 10361 2019-03-31 7838 2019-06-30 9251 2019-09-30 8838 2019-12-31 8198