Quarter	US dollars
2004-12-31	614
2005-03-31	713
2005-06-30	916
2005-09-30	640
2005-12-31	1777
2006-03-31	2090
2006-06-30	2075
2006-09-30	2326
2006-12-31	2538
2007-03-31	3146
2007-06-30	3507
2007-09-30	4138
2007-12-31	4704
2008-03-31	5030
2008-06-30	5515
2008-09-30	5826
2008-12-31	5207
2009-03-31	5595
2009-06-30	5601
2009-09-30	5553
2009-12-31	5623
2010-03-31	5694
2010-06-30	6197
2010-09-30	5604
2010-12-31	5756
2011-03-31	5356
2011-06-30	5393
2011-09-30	4502
2011-12-31	4957
2012-03-31	4670
2012-06-30	4707
2012-09-30	4541
2012-12-31	4723
2013-03-31	4762
2013-06-30	4295
2013-09-30	4677
2013-12-31	4243
2014-03-31	4480
2014-06-30	3965
2014-09-30	3956
2014-12-31	3730
2015-03-31	3660
2015-06-30	3089
2015-09-30	74
2015-12-31	76
2016-03-31	79
2016-06-30	67
2016-09-30	68
2016-12-31	65
2017-03-31	69
2017-06-30	66
2017-09-30	60
2017-12-31	57
2018-03-31	53
2018-06-30	53
2018-09-30	50
2018-12-31	51
2019-03-31	63
2019-06-30	33
2019-09-30	31
2019-12-31	36
2020-03-31	32
2020-06-30	28
2020-09-30	27
2020-12-31	14
2021-03-31	14
2021-06-30	14
2021-09-30	38
2021-12-31	35
2022-03-31	33
2022-06-30	31
2022-09-30	27
2022-12-31	29
2023-03-31	29
2023-06-30	10
2023-09-30	10