Quarter	US dollars
2004-12-31	40
2005-03-31	62
2005-06-30	93
2005-09-30	104
2005-12-31	103
2006-03-31	97
2006-06-30	192
2006-09-30	198
2006-12-31	311
2007-03-31	326
2007-06-30	467
2007-09-30	621
2007-12-31	673
2008-03-31	690
2008-06-30	645
2008-09-30	545
2008-12-31	466
2009-03-31	499
2009-06-30	529
2009-09-30	470
2009-12-31	499
2010-03-31	476
2010-06-30	411
2010-09-30	547
2010-12-31	754
2011-03-31	718
2011-06-30	662
2011-09-30	857
2011-12-31	880
2012-03-31	727
2012-06-30	932
2012-09-30	628
2012-12-31	860
2013-03-31	1057
2013-06-30	1265
2013-09-30	1205
2013-12-31	800
2014-03-31	717
2014-06-30	639
2014-09-30	661
2014-12-31	681
2015-03-31	768
2015-06-30	646
2015-09-30	633
2015-12-31	649
2016-03-31	677
2016-06-30	649
2016-09-30	648
2016-12-31	619
2017-03-31	609
2017-06-30	426
2017-09-30	475
2017-12-31	513
2018-03-31	514
2018-06-30	481
2018-09-30	460
2018-12-31	735
2019-03-31	696
2019-06-30	697
2019-09-30	790
2019-12-31	839
2020-03-31	1036
2020-06-30	1060
2020-09-30	1111
2020-12-31	996
2021-03-31	909
2021-06-30	1005
2021-09-30	759
2021-12-31	970
2022-03-31	1060
2022-06-30	899
2022-09-30	912
2022-12-31	1026
2023-03-31	970
2023-06-30	1008
2023-09-30	926