Quarter	US dollars
2004-12-31	129
2005-03-31	117
2005-06-30	147
2005-09-30	179
2005-12-31	208
2006-03-31	248
2006-06-30	224
2006-09-30	488
2006-12-31	421
2007-03-31	367
2007-06-30	463
2007-09-30	414
2007-12-31	440
2008-03-31	433
2008-06-30	412
2008-09-30	380
2008-12-31	92
2009-03-31	63
2009-06-30	69
2009-09-30	58
2009-12-31	55
2010-03-31	61
2010-06-30	63
2010-09-30	36
2010-12-31	33
2011-03-31	35
2011-06-30	45
2011-09-30	44
2011-12-31	303
2012-03-31	62
2012-06-30	38
2012-09-30	37
2012-12-31	37
2013-03-31	65
2013-06-30	77
2013-09-30	73
2013-12-31	99
2014-03-31	135
2014-06-30	140
2014-09-30	133
2014-12-31	130
2015-03-31	37
2015-06-30	77
2015-09-30	36
2015-12-31	37
2016-03-31	33
2016-06-30	24
2016-09-30	32
2016-12-31	33
2017-03-31	33
2017-06-30	32
2017-09-30	32
2017-12-31	32
2018-03-31	32
2018-06-30	53
2018-09-30	51
2018-12-31	51
2019-03-31	20
2019-06-30	52
2019-09-30	34
2019-12-31	34
2020-03-31	33
2020-06-30	35
2020-09-30	34
2020-12-31	34
2021-03-31	34
2021-06-30	35
2021-09-30	34
2021-12-31	34
2022-03-31	34
2022-06-30	34
2022-09-30	34
2022-12-31	34
2023-03-31	34
2023-06-30	31
2023-09-30	31