Quarter	US dollars
2004-12-31	4617
2005-03-31	5658
2005-06-30	5890
2005-09-30	5772
2005-12-31	4089
2006-03-31	6288
2006-06-30	6434
2006-09-30	5522
2006-12-31	7123
2007-03-31	12352
2007-06-30	8634
2007-09-30	8628
2007-12-31	10673
2008-03-31	13316
2008-06-30	9079
2008-09-30	7522
2008-12-31	4258
2009-03-31	2491
2009-06-30	3229
2009-09-30	2956
2009-12-31	2664
2010-03-31	2092
2010-06-30	1979
2010-09-30	700
2010-12-31	664
2011-03-31	939
2011-06-30	819
2011-09-30	530
2011-12-31	614
2012-03-31	427
2012-06-30	108
2012-09-30	134
2012-12-31	307
2013-03-31	105
2013-06-30	200
2013-09-30	275
2013-12-31	375
2014-03-31	107
2014-06-30	145
2014-09-30	780
2014-12-31	696
2015-03-31	689
2015-06-30	613
2015-09-30	629
2015-12-31	516
2016-03-31	575
2016-06-30	471
2016-09-30	425
2016-12-31	1528
2017-03-31	1365
2017-06-30	2091
2017-09-30	2189
2017-12-31	1646
2018-03-31	985
2018-06-30	1856
2018-09-30	1073
2018-12-31	891
2019-03-31	1295
2019-06-30	1058
2019-09-30	551
2019-12-31	172
2020-03-31	148
2020-06-30	108
2020-09-30	124
2020-12-31	25
2021-03-31	12
2021-06-30	62
2021-09-30	19
2021-12-31	54
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	4
2023-03-31	5
2023-06-30	57
2023-09-30	49