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	6
2006-09-30	6
2006-12-31	6
2007-03-31	31
2007-06-30	28
2007-09-30	67
2007-12-31	12
2008-03-31	28
2008-06-30	32
2008-09-30	27
2008-12-31	72
2009-03-31	79
2009-06-30	102
2009-09-30	195
2009-12-31	108
2010-03-31	99
2010-06-30	72
2010-09-30	58
2010-12-31	66
2011-03-31	186
2011-06-30	206
2011-09-30	184
2011-12-31	176
2012-03-31	276
2012-06-30	395
2012-09-30	307
2012-12-31	276
2013-03-31	433
2013-06-30	244
2013-09-30	228
2013-12-31	207
2014-03-31	178
2014-06-30	159
2014-09-30	196
2014-12-31	173
2015-03-31	168
2015-06-30	167
2015-09-30	124
2015-12-31	133
2016-03-31	115
2016-06-30	110
2016-09-30	82
2016-12-31	84
2017-03-31	85
2017-06-30	65
2017-09-30	48
2017-12-31	63
2018-03-31	59
2018-06-30	49
2018-09-30	35
2018-12-31	36
2019-03-31	31
2019-06-30	41
2019-09-30	37
2019-12-31	33
2020-03-31	33
2020-06-30	30
2020-09-30	17
2020-12-31	14
2021-03-31	18
2021-06-30	19
2021-09-30	20
2021-12-31	22
2022-03-31	18
2022-06-30	16
2022-09-30	19
2022-12-31	19
2023-03-31	23
2023-06-30	50
2023-09-30	72