Quarter	US dollars
2004-12-31	2864
2005-03-31	2633
2005-06-30	2691
2005-09-30	2492
2005-12-31	3064
2006-03-31	3533
2006-06-30	4113
2006-09-30	3875
2006-12-31	4305
2007-03-31	3515
2007-06-30	3357
2007-09-30	4095
2007-12-31	3888
2008-03-31	3593
2008-06-30	4303
2008-09-30	2331
2008-12-31	1688
2009-03-31	1905
2009-06-30	2096
2009-09-30	2108
2009-12-31	1967
2010-03-31	1847
2010-06-30	379
2010-09-30	362
2010-12-31	441
2011-03-31	450
2011-06-30	405
2011-09-30	260
2011-12-31	198
2012-03-31	161
2012-06-30	105
2012-09-30	247
2012-12-31	312
2013-03-31	536
2013-06-30	596
2013-09-30	118
2013-12-31	683
2014-03-31	672
2014-06-30	662
2014-09-30	418
2014-12-31	264
2015-03-31	229
2015-06-30	225
2015-09-30	218
2015-12-31	216
2016-03-31	180
2016-06-30	165
2016-09-30	25
2016-12-31	18
2017-03-31	13
2017-06-30	27
2017-09-30	9
2017-12-31	22
2018-03-31	76
2018-06-30	62
2018-09-30	50
2018-12-31	42
2019-03-31	33
2019-06-30	56
2019-09-30	553
2019-12-31	579
2020-03-31	544
2020-06-30	628
2020-09-30	105
2020-12-31	55
2021-03-31	8
2021-06-30	8
2021-09-30	11
2021-12-31	11
2022-03-31	30
2022-06-30	26
2022-09-30	31
2022-12-31	20
2023-03-31	19
2023-06-30	64
2023-09-30	86