Quarter	US dollars
2004-12-31	2233
2005-03-31	2475
2005-06-30	1244
2005-09-30	1580
2005-12-31	2007
2006-03-31	3493
2006-06-30	2748
2006-09-30	3906
2006-12-31	2726
2007-03-31	4317
2007-06-30	1872
2007-09-30	3138
2007-12-31	3958
2008-03-31	4414
2008-06-30	4116
2008-09-30	5653
2008-12-31	3823
2009-03-31	4448
2009-06-30	4087
2009-09-30	3486
2009-12-31	3585
2010-03-31	3566
2010-06-30	2915
2010-09-30	3241
2010-12-31	3408
2011-03-31	3961
2011-06-30	3251
2011-09-30	2080
2011-12-31	1759
2012-03-31	252
2012-06-30	63
2012-09-30	65
2012-12-31	118
2013-03-31	121
2013-06-30	106
2013-09-30	121
2013-12-31	142
2014-03-31	937
2014-06-30	559
2014-09-30	588
2014-12-31	290
2015-03-31	154
2015-06-30	93
2015-09-30	91
2015-12-31	90
2016-03-31	138
2016-06-30	81
2016-09-30	400
2016-12-31	340
2017-03-31	341
2017-06-30	356
2017-09-30	402
2017-12-31	461
2018-03-31	814
2018-06-30	609
2018-09-30	618
2018-12-31	538
2019-03-31	605
2019-06-30	578
2019-09-30	543
2019-12-31	847
2020-03-31	677
2020-06-30	121
2020-09-30	68
2020-12-31	758
2021-03-31	766
2021-06-30	965
2021-09-30	824
2021-12-31	450
2022-03-31	586
2022-06-30	-7
2022-09-30	-47
2022-12-31	-36
2023-03-31	10
2023-06-30	17
2023-09-30	18