Quarter	US dollars
2004-12-31	668
2005-03-31	1210
2005-06-30	884
2005-09-30	1086
2005-12-31	1794
2006-03-31	4413
2006-06-30	2290
2006-09-30	1978
2006-12-31	2004
2007-03-31	3422
2007-06-30	3200
2007-09-30	3767
2007-12-31	3880
2008-03-31	4343
2008-06-30	4490
2008-09-30	3853
2008-12-31	3591
2009-03-31	2962
2009-06-30	3692
2009-09-30	5145
2009-12-31	4706
2010-03-31	5776
2010-06-30	5129
2010-09-30	6582
2010-12-31	4880
2011-03-31	6742
2011-06-30	6475
2011-09-30	7497
2011-12-31	4811
2012-03-31	7096
2012-06-30	7542
2012-09-30	6119
2012-12-31	3798
2013-03-31	3616
2013-06-30	3610
2013-09-30	2928
2013-12-31	2954
2014-03-31	2723
2014-06-30	3149
2014-09-30	3636
2014-12-31	2877
2015-03-31	3084
2015-06-30	2539
2015-09-30	2420
2015-12-31	1646
2016-03-31	2072
2016-06-30	2479
2016-09-30	2641
2016-12-31	2183
2017-03-31	2403
2017-06-30	2520
2017-09-30	1614
2017-12-31	3124
2018-03-31	4179
2018-06-30	6485
2018-09-30	2366
2018-12-31	1986
2019-03-31	1867
2019-06-30	2304
2019-09-30	2093
2019-12-31	1848
2020-03-31	1833
2020-06-30	1866
2020-09-30	1573
2020-12-31	1486
2021-03-31	1316
2021-06-30	1079
2021-09-30	1645
2021-12-31	1788
2022-03-31	4113
2022-06-30	3303
2022-09-30	2932
2022-12-31	3167
2023-03-31	3414
2023-06-30	3282
2023-09-30	3274