Quarter	US dollars
2004-12-31	94
2005-03-31	74
2005-06-30	106
2005-09-30	87
2005-12-31	88
2006-03-31	106
2006-06-30	87
2006-09-30	133
2006-12-31	96
2007-03-31	98
2007-06-30	126
2007-09-30	175
2007-12-31	177
2008-03-31	141
2008-06-30	94
2008-09-30	93
2008-12-31	70
2009-03-31	69
2009-06-30	94
2009-09-30	59
2009-12-31	58
2010-03-31	65
2010-06-30	75
2010-09-30	104
2010-12-31	117
2011-03-31	114
2011-06-30	130
2011-09-30	109
2011-12-31	108
2012-03-31	165
2012-06-30	209
2012-09-30	234
2012-12-31	220
2013-03-31	273
2013-06-30	287
2013-09-30	418
2013-12-31	458
2014-03-31	418
2014-06-30	405
2014-09-30	366
2014-12-31	379
2015-03-31	386
2015-06-30	395
2015-09-30	388
2015-12-31	422
2016-03-31	365
2016-06-30	469
2016-09-30	464
2016-12-31	428
2017-03-31	468
2017-06-30	534
2017-09-30	590
2017-12-31	607
2018-03-31	608
2018-06-30	564
2018-09-30	561
2018-12-31	512
2019-03-31	615
2019-06-30	574
2019-09-30	558
2019-12-31	625
2020-03-31	578
2020-06-30	552
2020-09-30	560
2020-12-31	587
2021-03-31	541
2021-06-30	525
2021-09-30	499
2021-12-31	447
2022-03-31	419
2022-06-30	389
2022-09-30	383
2022-12-31	425
2023-03-31	403
2023-06-30	391
2023-09-30	428