Quarter	US dollars
2004-12-31	-4
2005-03-31	25
2005-06-30	-2
2005-09-30	0
2005-12-31	7
2006-03-31	36
2006-06-30	63
2006-09-30	54
2006-12-31	6
2007-03-31	0
2007-06-30	4
2007-09-30	0
2007-12-31	-2
2008-03-31	0
2008-06-30	6
2008-09-30	7
2008-12-31	10
2009-03-31	11
2009-06-30	16
2009-09-30	-8
2009-12-31	8
2010-03-31	2
2010-06-30	3
2010-09-30	52
2010-12-31	13
2011-03-31	21
2011-06-30	11
2011-09-30	41
2011-12-31	3
2012-03-31	21
2012-06-30	14
2012-09-30	266
2012-12-31	280
2013-03-31	683
2013-06-30	426
2013-09-30	368
2013-12-31	431
2014-03-31	444
2014-06-30	463
2014-09-30	391
2014-12-31	443
2015-03-31	485
2015-06-30	475
2015-09-30	480
2015-12-31	403
2016-03-31	421
2016-06-30	400
2016-09-30	347
2016-12-31	16
2017-03-31	494
2017-06-30	335
2017-09-30	270
2017-12-31	238
2018-03-31	305
2018-06-30	250
2018-09-30	287
2018-12-31	294
2019-03-31	483
2019-06-30	331
2019-09-30	402
2019-12-31	407
2020-03-31	543
2020-06-30	513
2020-09-30	563
2020-12-31	427
2021-03-31	508
2021-06-30	550
2021-09-30	591
2021-12-31	526
2022-03-31	555
2022-06-30	570
2022-09-30	543
2022-12-31	391
2023-03-31	441
2023-06-30	470
2023-09-30	434