Quarter	US dollars
2004-12-31	140
2005-03-31	178
2005-06-30	172
2005-09-30	203
2005-12-31	421
2006-03-31	468
2006-06-30	290
2006-09-30	275
2006-12-31	331
2007-03-31	316
2007-06-30	307
2007-09-30	359
2007-12-31	390
2008-03-31	415
2008-06-30	384
2008-09-30	378
2008-12-31	395
2009-03-31	328
2009-06-30	339
2009-09-30	352
2009-12-31	349
2010-03-31	319
2010-06-30	310
2010-09-30	384
2010-12-31	409
2011-03-31	444
2011-06-30	472
2011-09-30	475
2011-12-31	493
2012-03-31	668
2012-06-30	729
2012-09-30	762
2012-12-31	797
2013-03-31	758
2013-06-30	764
2013-09-30	651
2013-12-31	602
2014-03-31	640
2014-06-30	703
2014-09-30	733
2014-12-31	794
2015-03-31	548
2015-06-30	478
2015-09-30	557
2015-12-31	568
2016-03-31	579
2016-06-30	579
2016-09-30	583
2016-12-31	682
2017-03-31	902
2017-06-30	781
2017-09-30	794
2017-12-31	717
2018-03-31	671
2018-06-30	713
2018-09-30	691
2018-12-31	697
2019-03-31	689
2019-06-30	696
2019-09-30	667
2019-12-31	651
2020-03-31	675
2020-06-30	721
2020-09-30	653
2020-12-31	670
2021-03-31	662
2021-06-30	734
2021-09-30	614
2021-12-31	532
2022-03-31	524
2022-06-30	561
2022-09-30	586
2022-12-31	572
2023-03-31	568
2023-06-30	544
2023-09-30	564