Quarter	US dollars
2004-12-31	19
2005-03-31	51
2005-06-30	43
2005-09-30	11
2005-12-31	14
2006-03-31	10
2006-06-30	9
2006-09-30	11
2006-12-31	14
2007-03-31	12
2007-06-30	16
2007-09-30	14
2007-12-31	28
2008-03-31	12
2008-06-30	20
2008-09-30	16
2008-12-31	7
2009-03-31	9
2009-06-30	12
2009-09-30	27
2009-12-31	27
2010-03-31	322
2010-06-30	218
2010-09-30	228
2010-12-31	225
2011-03-31	231
2011-06-30	202
2011-09-30	221
2011-12-31	260
2012-03-31	241
2012-06-30	248
2012-09-30	124
2012-12-31	136
2013-03-31	100
2013-06-30	100
2013-09-30	130
2013-12-31	240
2014-03-31	245
2014-06-30	291
2014-09-30	216
2014-12-31	318
2015-03-31	291
2015-06-30	357
2015-09-30	279
2015-12-31	410
2016-03-31	464
2016-06-30	509
2016-09-30	351
2016-12-31	348
2017-03-31	325
2017-06-30	348
2017-09-30	302
2017-12-31	190
2018-03-31	191
2018-06-30	235
2018-09-30	224
2018-12-31	299
2019-03-31	251
2019-06-30	70
2019-09-30	180
2019-12-31	5
2020-03-31	187
2020-06-30	116
2020-09-30	115
2020-12-31	131
2021-03-31	141
2021-06-30	227
2021-09-30	12
2021-12-31	12
2022-03-31	11
2022-06-30	9
2022-09-30	7
2022-12-31	10
2023-03-31	23
2023-06-30	11
2023-09-30	7