Quarter	US dollars
2004-12-31	499
2005-03-31	588
2005-06-30	769
2005-09-30	693
2005-12-31	651
2006-03-31	446
2006-06-30	583
2006-09-30	607
2006-12-31	918
2007-03-31	679
2007-06-30	604
2007-09-30	929
2007-12-31	854
2008-03-31	1220
2008-06-30	1067
2008-09-30	802
2008-12-31	900
2009-03-31	1003
2009-06-30	2350
2009-09-30	1529
2009-12-31	1373
2010-03-31	2266
2010-06-30	1993
2010-09-30	2644
2010-12-31	1349
2011-03-31	1691
2011-06-30	2335
2011-09-30	2569
2011-12-31	3231
2012-03-31	2944
2012-06-30	2489
2012-09-30	2371
2012-12-31	2829
2013-03-31	2207
2013-06-30	2715
2013-09-30	2674
2013-12-31	2633
2014-03-31	3016
2014-06-30	2823
2014-09-30	3288
2014-12-31	3265
2015-03-31	2742
2015-06-30	3372
2015-09-30	3908
2015-12-31	2876
2016-03-31	3475
2016-06-30	2149
2016-09-30	1863
2016-12-31	2168
2017-03-31	2341
2017-06-30	2637
2017-09-30	2465
2017-12-31	1916
2018-03-31	1852
2018-06-30	1807
2018-09-30	1397
2018-12-31	1429
2019-03-31	1250
2019-06-30	1558
2019-09-30	1578
2019-12-31	1306
2020-03-31	1606
2020-06-30	2259
2020-09-30	2070
2020-12-31	1777
2021-03-31	1792
2021-06-30	1117
2021-09-30	860
2021-12-31	1019
2022-03-31	887
2022-06-30	2301
2022-09-30	2079
2022-12-31	1527
2023-03-31	1237
2023-06-30	966
2023-09-30	1088