Quarter	US dollars
2004-12-31	31
2005-03-31	23
2005-06-30	5
2005-09-30	5
2005-12-31	7
2006-03-31	5
2006-06-30	7
2006-09-30	6
2006-12-31	65
2007-03-31	88
2007-06-30	40
2007-09-30	26
2007-12-31	32
2008-03-31	54
2008-06-30	62
2008-09-30	36
2008-12-31	17
2009-03-31	14
2009-06-30	18
2009-09-30	21
2009-12-31	23
2010-03-31	12
2010-06-30	9
2010-09-30	9
2010-12-31	13
2011-03-31	50
2011-06-30	40
2011-09-30	61
2011-12-31	45
2012-03-31	61
2012-06-30	75
2012-09-30	132
2012-12-31	158
2013-03-31	393
2013-06-30	355
2013-09-30	387
2013-12-31	101
2014-03-31	243
2014-06-30	224
2014-09-30	230
2014-12-31	228
2015-03-31	208
2015-06-30	226
2015-09-30	238
2015-12-31	240
2016-03-31	76
2016-06-30	60
2016-09-30	56
2016-12-31	46
2017-03-31	30
2017-06-30	22
2017-09-30	54
2017-12-31	95
2018-03-31	77
2018-06-30	55
2018-09-30	39
2018-12-31	59
2019-03-31	63
2019-06-30	33
2019-09-30	22
2019-12-31	40
2020-03-31	29
2020-06-30	0
2020-09-30	26
2020-12-31	37
2021-03-31	21
2021-06-30	21
2021-09-30	36
2021-12-31	24
2022-03-31	0
2022-06-30	0
2022-09-30	45
2022-12-31	75
2023-03-31	54
2023-06-30	34
2023-09-30	49