Quarter	US dollars
2004-12-31	345123
2005-03-31	316222
2005-06-30	415926
2005-09-30	396234
2005-12-31	357779
2006-03-31	359439
2006-06-30	445042
2006-09-30	359221
2006-12-31	355806
2007-03-31	446564
2007-06-30	609151
2007-09-30	692793
2007-12-31	874666
2008-03-31	1399220
2008-06-30	1457105
2008-09-30	1358028
2008-12-31	2467998
2009-03-31	1845446
2009-06-30	1311316
2009-09-30	1297672
2009-12-31	1066822
2010-03-31	1053803
2010-06-30	1180490
2010-09-30	1339468
2010-12-31	1143610
2011-03-31	912862
2011-06-30	977884
2011-09-30	1339045
2011-12-31	1226560
2012-03-31	1143450
2012-06-30	1105498
2012-09-30	867235
2012-12-31	845552
2013-03-31	772918
2013-06-30	673221
2013-09-30	592009
2013-12-31	554144
2014-03-31	467724
2014-06-30	671751
2014-09-30	721533
2014-12-31	823893
2015-03-31	869856
2015-06-30	667806
2015-09-30	709567
2015-12-31	609071
2016-03-31	717853
2016-06-30	743354
2016-09-30	662814
2016-12-31	551366
2017-03-31	441405
2017-06-30	430378
2017-09-30	416022
2017-12-31	379207
2018-03-31	367050
2018-06-30	282880
2018-09-30	349226
2018-12-31	365788
2019-03-31	392521
2019-06-30	394106
2019-09-30	489227
2019-12-31	413776
2020-03-31	585832
2020-06-30	519684
2020-09-30	505712
2020-12-31	539268
2021-03-31	464449
2021-06-30	412354
2021-09-30	381392
2021-12-31	372961
2022-03-31	394112
2022-06-30	444308
2022-09-30	515622
2022-12-31	407644
2023-03-31	360934
2023-06-30	382927
2023-09-30	397059