Quarter	US dollars
2004-12-31	250
2005-03-31	183
2005-06-30	158
2005-09-30	161
2005-12-31	170
2006-03-31	252
2006-06-30	266
2006-09-30	269
2006-12-31	489
2007-03-31	394
2007-06-30	333
2007-09-30	210
2007-12-31	414
2008-03-31	332
2008-06-30	470
2008-09-30	433
2008-12-31	456
2009-03-31	414
2009-06-30	473
2009-09-30	417
2009-12-31	394
2010-03-31	381
2010-06-30	277
2010-09-30	195
2010-12-31	99
2011-03-31	111
2011-06-30	111
2011-09-30	84
2011-12-31	83
2012-03-31	82
2012-06-30	69
2012-09-30	55
2012-12-31	47
2013-03-31	52
2013-06-30	59
2013-09-30	50
2013-12-31	31
2014-03-31	32
2014-06-30	29
2014-09-30	81
2014-12-31	112
2015-03-31	117
2015-06-30	110
2015-09-30	101
2015-12-31	101
2016-03-31	98
2016-06-30	93
2016-09-30	90
2016-12-31	91
2017-03-31	91
2017-06-30	92
2017-09-30	80
2017-12-31	73
2018-03-31	51
2018-06-30	49
2018-09-30	13
2018-12-31	15
2019-03-31	9
2019-06-30	6
2019-09-30	1
2019-12-31	1
2020-03-31	1
2020-06-30	1
2020-09-30	1
2020-12-31	1
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	1
2022-03-31	1
2022-06-30	1
2022-09-30	1
2022-12-31	1
2023-03-31	1
2023-06-30	1
2023-09-30	0