Quarter	US dollars
2004-12-31	437731
2005-03-31	535148
2005-06-30	515575
2005-09-30	625221
2005-12-31	480021
2006-03-31	563421
2006-06-30	567849
2006-09-30	636109
2006-12-31	638385
2007-03-31	676903
2007-06-30	681458
2007-09-30	796613
2007-12-31	844466
2008-03-31	978983
2008-06-30	938772
2008-09-30	997056
2008-12-31	778419
2009-03-31	681248
2009-06-30	697517
2009-09-30	703879
2009-12-31	698002
2010-03-31	781248
2010-06-30	737262
2010-09-30	820347
2010-12-31	758798
2011-03-31	799507
2011-06-30	803688
2011-09-30	834908
2011-12-31	752125
2012-03-31	810766
2012-06-30	829847
2012-09-30	847548
2012-12-31	798609
2013-03-31	810664
2013-06-30	806977
2013-09-30	808416
2013-12-31	750930
2014-03-31	770361
2014-06-30	762061
2014-09-30	717191
2014-12-31	680902
2015-03-31	685437
2015-06-30	630198
2015-09-30	616810
2015-12-31	572911
2016-03-31	574607
2016-06-30	587828
2016-09-30	558180
2016-12-31	536745
2017-03-31	589088
2017-06-30	704271
2017-09-30	682304
2017-12-31	727289
2018-03-31	794381
2018-06-30	809448
2018-09-30	755296
2018-12-31	742622
2019-03-31	787465
2019-06-30	928615
2019-09-30	973265
2019-12-31	909704
2020-03-31	1092704
2020-06-30	984099
2020-09-30	999721
2020-12-31	1075978
2021-03-31	1131192
2021-06-30	1092333
2021-09-30	1060053
2021-12-31	1113610
2022-03-31	1196989
2022-06-30	1138909
2022-09-30	1160995
2022-12-31	1130321
2023-03-31	1176173
2023-06-30	1175250
2023-09-30	1193671