Quarter	US dollars
2004-12-31	177
2005-03-31	210
2005-06-30	149
2005-09-30	348
2005-12-31	208
2006-03-31	404
2006-06-30	416
2006-09-30	702
2006-12-31	689
2007-03-31	735
2007-06-30	728
2007-09-30	974
2007-12-31	778
2008-03-31	634
2008-06-30	623
2008-09-30	604
2008-12-31	571
2009-03-31	516
2009-06-30	423
2009-09-30	353
2009-12-31	299
2010-03-31	185
2010-06-30	171
2010-09-30	180
2010-12-31	116
2011-03-31	99
2011-06-30	145
2011-09-30	34
2011-12-31	88
2012-03-31	94
2012-06-30	91
2012-09-30	55
2012-12-31	66
2013-03-31	56
2013-06-30	124
2013-09-30	130
2013-12-31	78
2014-03-31	85
2014-06-30	118
2014-09-30	76
2014-12-31	94
2015-03-31	184
2015-06-30	93
2015-09-30	186
2015-12-31	216
2016-03-31	68
2016-06-30	8
2016-09-30	12
2016-12-31	18
2017-03-31	4
2017-06-30	12
2017-09-30	4
2017-12-31	7
2018-03-31	0
2018-06-30	0
2018-09-30	8
2018-12-31	9
2019-03-31	3
2019-06-30	0
2019-09-30	2501
2019-12-31	2511
2020-03-31	2513
2020-06-30	2527
2020-09-30	1725
2020-12-31	1720
2021-03-31	1716
2021-06-30	1718
2021-09-30	866
2021-12-31	852
2022-03-31	503
2022-06-30	516
2022-09-30	505
2022-12-31	503
2023-03-31	497
2023-06-30	500
2023-09-30	500