Quarter	US dollars
2004-12-31	127
2005-03-31	140
2005-06-30	168
2005-09-30	184
2005-12-31	187
2006-03-31	170
2006-06-30	174
2006-09-30	177
2006-12-31	184
2007-03-31	216
2007-06-30	187
2007-09-30	226
2007-12-31	237
2008-03-31	207
2008-06-30	285
2008-09-30	310
2008-12-31	433
2009-03-31	338
2009-06-30	425
2009-09-30	456
2009-12-31	512
2010-03-31	566
2010-06-30	434
2010-09-30	558
2010-12-31	531
2011-03-31	455
2011-06-30	501
2011-09-30	511
2011-12-31	472
2012-03-31	487
2012-06-30	525
2012-09-30	484
2012-12-31	464
2013-03-31	484
2013-06-30	488
2013-09-30	575
2013-12-31	489
2014-03-31	532
2014-06-30	82
2014-09-30	73
2014-12-31	75
2015-03-31	86
2015-06-30	90
2015-09-30	14
2015-12-31	0
2016-03-31	-4
2016-06-30	4
2016-09-30	-1
2016-12-31	12
2017-03-31	204
2017-06-30	253
2017-09-30	335
2017-12-31	355
2018-03-31	380
2018-06-30	322
2018-09-30	274
2018-12-31	245
2019-03-31	326
2019-06-30	403
2019-09-30	359
2019-12-31	350
2020-03-31	254
2020-06-30	278
2020-09-30	246
2020-12-31	210
2021-03-31	257
2021-06-30	351
2021-09-30	258
2021-12-31	319
2022-03-31	228
2022-06-30	263
2022-09-30	247
2022-12-31	239
2023-03-31	256
2023-06-30	240
2023-09-30	3