Quarter	US dollars
2004-12-31	0
2005-03-31	2
2005-06-30	2
2005-09-30	4
2005-12-31	3
2006-03-31	0
2006-06-30	2
2006-09-30	2
2006-12-31	2
2007-03-31	2
2007-06-30	4
2007-09-30	6
2007-12-31	20
2008-03-31	4
2008-06-30	6
2008-09-30	0
2008-12-31	1
2009-03-31	3
2009-06-30	5
2009-09-30	22
2009-12-31	19
2010-03-31	21
2010-06-30	12
2010-09-30	22
2010-12-31	16
2011-03-31	24
2011-06-30	92
2011-09-30	6
2011-12-31	8
2012-03-31	8
2012-06-30	102
2012-09-30	26
2012-12-31	99
2013-03-31	93
2013-06-30	143
2013-09-30	120
2013-12-31	134
2014-03-31	183
2014-06-30	251
2014-09-30	248
2014-12-31	289
2015-03-31	252
2015-06-30	269
2015-09-30	191
2015-12-31	163
2016-03-31	214
2016-06-30	224
2016-09-30	247
2016-12-31	240
2017-03-31	203
2017-06-30	157
2017-09-30	89
2017-12-31	66
2018-03-31	52
2018-06-30	65
2018-09-30	38
2018-12-31	140
2019-03-31	94
2019-06-30	112
2019-09-30	5
2019-12-31	67
2020-03-31	76
2020-06-30	77
2020-09-30	54
2020-12-31	79
2021-03-31	48
2021-06-30	102
2021-09-30	98
2021-12-31	9
2022-03-31	14
2022-06-30	14
2022-09-30	9
2022-12-31	11
2023-03-31	8
2023-06-30	116
2023-09-30	80