Quarter	US dollars
2004-12-31	484
2005-03-31	482
2005-06-30	674
2005-09-30	407
2005-12-31	340
2006-03-31	307
2006-06-30	364
2006-09-30	568
2006-12-31	202
2007-03-31	508
2007-06-30	897
2007-09-30	1681
2007-12-31	2027
2008-03-31	2858
2008-06-30	3634
2008-09-30	3074
2008-12-31	1931
2009-03-31	987
2009-06-30	1098
2009-09-30	1116
2009-12-31	752
2010-03-31	1590
2010-06-30	634
2010-09-30	1615
2010-12-31	3222
2011-03-31	3127
2011-06-30	2545
2011-09-30	720
2011-12-31	2441
2012-03-31	2507
2012-06-30	1531
2012-09-30	1318
2012-12-31	1324
2013-03-31	1887
2013-06-30	2167
2013-09-30	7099
2013-12-31	8849
2014-03-31	4895
2014-06-30	4351
2014-09-30	3114
2014-12-31	3314
2015-03-31	2321
2015-06-30	2545
2015-09-30	2243
2015-12-31	1852
2016-03-31	2719
2016-06-30	3598
2016-09-30	4499
2016-12-31	2971
2017-03-31	2135
2017-06-30	2245
2017-09-30	2050
2017-12-31	1882
2018-03-31	3811
2018-06-30	5656
2018-09-30	6101
2018-12-31	4278
2019-03-31	4381
2019-06-30	5029
2019-09-30	4227
2019-12-31	2999
2020-03-31	3269
2020-06-30	4931
2020-09-30	4690
2020-12-31	5417
2021-03-31	5506
2021-06-30	4733
2021-09-30	3475
2021-12-31	3067
2022-03-31	2494
2022-06-30	3702
2022-09-30	3093
2022-12-31	3084
2023-03-31	2851
2023-06-30	2844
2023-09-30	3414