Quarter	US dollars
2004-12-31	90
2005-03-31	164
2005-06-30	48
2005-09-30	225
2005-12-31	173
2006-03-31	118
2006-06-30	100
2006-09-30	123
2006-12-31	354
2007-03-31	469
2007-06-30	189
2007-09-30	475
2007-12-31	478
2008-03-31	564
2008-06-30	515
2008-09-30	511
2008-12-31	519
2009-03-31	244
2009-06-30	214
2009-09-30	473
2009-12-31	241
2010-03-31	617
2010-06-30	349
2010-09-30	350
2010-12-31	276
2011-03-31	252
2011-06-30	334
2011-09-30	234
2011-12-31	326
2012-03-31	363
2012-06-30	391
2012-09-30	317
2012-12-31	293
2013-03-31	301
2013-06-30	475
2013-09-30	403
2013-12-31	602
2014-03-31	557
2014-06-30	588
2014-09-30	529
2014-12-31	620
2015-03-31	548
2015-06-30	562
2015-09-30	539
2015-12-31	387
2016-03-31	476
2016-06-30	281
2016-09-30	265
2016-12-31	385
2017-03-31	642
2017-06-30	599
2017-09-30	558
2017-12-31	223
2018-03-31	205
2018-06-30	143
2018-09-30	227
2018-12-31	235
2019-03-31	425
2019-06-30	382
2019-09-30	240
2019-12-31	246
2020-03-31	221
2020-06-30	267
2020-09-30	156
2020-12-31	160
2021-03-31	37
2021-06-30	51
2021-09-30	167
2021-12-31	137
2022-03-31	118
2022-06-30	52
2022-09-30	22
2022-12-31	30
2023-03-31	76
2023-06-30	180
2023-09-30	177