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	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	3
2009-09-30	3
2009-12-31	3
2010-03-31	3
2010-06-30	4
2010-09-30	14
2010-12-31	13
2011-03-31	14
2011-06-30	14
2011-09-30	14
2011-12-31	110
2012-03-31	161
2012-06-30	13
2012-09-30	16
2012-12-31	16
2013-03-31	17
2013-06-30	15
2013-09-30	16
2013-12-31	15
2014-03-31	15
2014-06-30	14
2014-09-30	66
2014-12-31	31
2015-03-31	24
2015-06-30	19
2015-09-30	9
2015-12-31	9
2016-03-31	10
2016-06-30	8
2016-09-30	9
2016-12-31	6
2017-03-31	6
2017-06-30	49
2017-09-30	27
2017-12-31	49
2018-03-31	55
2018-06-30	29
2018-09-30	70
2018-12-31	42
2019-03-31	42
2019-06-30	28
2019-09-30	43
2019-12-31	66
2020-03-31	67
2020-06-30	67
2020-09-30	105
2020-12-31	117
2021-03-31	132
2021-06-30	134
2021-09-30	98
2021-12-31	151
2022-03-31	279
2022-06-30	307
2022-09-30	291
2022-12-31	572
2023-03-31	607
2023-06-30	525
2023-09-30	594