Quarter	US dollars
2004-12-31	19
2005-03-31	17
2005-06-30	23
2005-09-30	18
2005-12-31	22
2006-03-31	28
2006-06-30	24
2006-09-30	17
2006-12-31	22
2007-03-31	24
2007-06-30	8
2007-09-30	14
2007-12-31	30
2008-03-31	30
2008-06-30	127
2008-09-30	18
2008-12-31	10
2009-03-31	59
2009-06-30	76
2009-09-30	46
2009-12-31	40
2010-03-31	9
2010-06-30	15
2010-09-30	22
2010-12-31	30
2011-03-31	21
2011-06-30	96
2011-09-30	86
2011-12-31	15
2012-03-31	18
2012-06-30	67
2012-09-30	110
2012-12-31	178
2013-03-31	260
2013-06-30	334
2013-09-30	481
2013-12-31	218
2014-03-31	157
2014-06-30	152
2014-09-30	146
2014-12-31	137
2015-03-31	144
2015-06-30	107
2015-09-30	132
2015-12-31	151
2016-03-31	109
2016-06-30	105
2016-09-30	71
2016-12-31	76
2017-03-31	84
2017-06-30	77
2017-09-30	72
2017-12-31	68
2018-03-31	74
2018-06-30	70
2018-09-30	57
2018-12-31	43
2019-03-31	53
2019-06-30	55
2019-09-30	94
2019-12-31	69
2020-03-31	91
2020-06-30	53
2020-09-30	53
2020-12-31	57
2021-03-31	81
2021-06-30	53
2021-09-30	101
2021-12-31	102
2022-03-31	87
2022-06-30	60
2022-09-30	99
2022-12-31	65
2023-03-31	57
2023-06-30	59
2023-09-30	61