Quarter	US dollars
2004-12-31	1242
2005-03-31	1306
2005-06-30	1206
2005-09-30	906
2005-12-31	671
2006-03-31	760
2006-06-30	686
2006-09-30	693
2006-12-31	1074
2007-03-31	1049
2007-06-30	558
2007-09-30	520
2007-12-31	759
2008-03-31	1109
2008-06-30	655
2008-09-30	636
2008-12-31	722
2009-03-31	714
2009-06-30	779
2009-09-30	491
2009-12-31	591
2010-03-31	564
2010-06-30	542
2010-09-30	616
2010-12-31	653
2011-03-31	608
2011-06-30	697
2011-09-30	757
2011-12-31	891
2012-03-31	871
2012-06-30	902
2012-09-30	856
2012-12-31	716
2013-03-31	551
2013-06-30	575
2013-09-30	730
2013-12-31	747
2014-03-31	735
2014-06-30	957
2014-09-30	861
2014-12-31	780
2015-03-31	750
2015-06-30	651
2015-09-30	610
2015-12-31	634
2016-03-31	613
2016-06-30	455
2016-09-30	322
2016-12-31	333
2017-03-31	253
2017-06-30	210
2017-09-30	229
2017-12-31	273
2018-03-31	267
2018-06-30	141
2018-09-30	147
2018-12-31	133
2019-03-31	113
2019-06-30	102
2019-09-30	112
2019-12-31	159
2020-03-31	159
2020-06-30	192
2020-09-30	275
2020-12-31	134
2021-03-31	366
2021-06-30	305
2021-09-30	69
2021-12-31	82
2022-03-31	82
2022-06-30	220
2022-09-30	454
2022-12-31	496
2023-03-31	614
2023-06-30	622
2023-09-30	90