Quarter	US dollars
2004-12-31	182
2005-03-31	81
2005-06-30	115
2005-09-30	198
2005-12-31	142
2006-03-31	97
2006-06-30	63
2006-09-30	106
2006-12-31	123
2007-03-31	237
2007-06-30	215
2007-09-30	334
2007-12-31	261
2008-03-31	553
2008-06-30	390
2008-09-30	319
2008-12-31	214
2009-03-31	149
2009-06-30	135
2009-09-30	139
2009-12-31	136
2010-03-31	137
2010-06-30	55
2010-09-30	58
2010-12-31	50
2011-03-31	21
2011-06-30	27
2011-09-30	61
2011-12-31	68
2012-03-31	61
2012-06-30	83
2012-09-30	111
2012-12-31	97
2013-03-31	83
2013-06-30	68
2013-09-30	79
2013-12-31	74
2014-03-31	70
2014-06-30	152
2014-09-30	237
2014-12-31	259
2015-03-31	189
2015-06-30	165
2015-09-30	153
2015-12-31	147
2016-03-31	240
2016-06-30	187
2016-09-30	196
2016-12-31	193
2017-03-31	189
2017-06-30	5
2017-09-30	9
2017-12-31	8
2018-03-31	6
2018-06-30	9
2018-09-30	14
2018-12-31	23
2019-03-31	26
2019-06-30	9
2019-09-30	2
2019-12-31	5
2020-03-31	2
2020-06-30	5
2020-09-30	5
2020-12-31	5
2021-03-31	4
2021-06-30	7
2021-09-30	5
2021-12-31	5
2022-03-31	8
2022-06-30	6
2022-09-30	6
2022-12-31	4
2023-03-31	11
2023-06-30	9
2023-09-30	8