Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	42
2007-09-30	41
2007-12-31	54
2008-03-31	54
2008-06-30	30
2008-09-30	121
2008-12-31	19
2009-03-31	10
2009-06-30	12
2009-09-30	8
2009-12-31	13
2010-03-31	120
2010-06-30	129
2010-09-30	137
2010-12-31	141
2011-03-31	101
2011-06-30	114
2011-09-30	83
2011-12-31	147
2012-03-31	83
2012-06-30	318
2012-09-30	354
2012-12-31	589
2013-03-31	657
2013-06-30	595
2013-09-30	426
2013-12-31	549
2014-03-31	388
2014-06-30	311
2014-09-30	324
2014-12-31	165
2015-03-31	65
2015-06-30	66
2015-09-30	56
2015-12-31	39
2016-03-31	46
2016-06-30	160
2016-09-30	188
2016-12-31	144
2017-03-31	173
2017-06-30	34
2017-09-30	43
2017-12-31	54
2018-03-31	109
2018-06-30	25
2018-09-30	31
2018-12-31	26
2019-03-31	46
2019-06-30	8
2019-09-30	4
2019-12-31	5
2020-03-31	16
2020-06-30	36
2020-09-30	35
2020-12-31	38
2021-03-31	97
2021-06-30	109
2021-09-30	88
2021-12-31	16
2022-03-31	16
2022-06-30	5
2022-09-30	1
2022-12-31	6
2023-03-31	10
2023-06-30	35
2023-09-30	30