Quarter	US dollars
2004-12-31	217
2005-03-31	302
2005-06-30	186
2005-09-30	207
2005-12-31	211
2006-03-31	324
2006-06-30	396
2006-09-30	433
2006-12-31	536
2007-03-31	379
2007-06-30	209
2007-09-30	269
2007-12-31	408
2008-03-31	425
2008-06-30	424
2008-09-30	403
2008-12-31	321
2009-03-31	396
2009-06-30	366
2009-09-30	488
2009-12-31	497
2010-03-31	592
2010-06-30	688
2010-09-30	548
2010-12-31	1050
2011-03-31	946
2011-06-30	899
2011-09-30	712
2011-12-31	575
2012-03-31	646
2012-06-30	813
2012-09-30	1076
2012-12-31	891
2013-03-31	826
2013-06-30	830
2013-09-30	989
2013-12-31	1063
2014-03-31	934
2014-06-30	1077
2014-09-30	1226
2014-12-31	1634
2015-03-31	328
2015-06-30	324
2015-09-30	158
2015-12-31	341
2016-03-31	239
2016-06-30	314
2016-09-30	260
2016-12-31	411
2017-03-31	238
2017-06-30	459
2017-09-30	388
2017-12-31	685
2018-03-31	542
2018-06-30	453
2018-09-30	446
2018-12-31	428
2019-03-31	780
2019-06-30	1088
2019-09-30	991
2019-12-31	1040
2020-03-31	898
2020-06-30	978
2020-09-30	1018
2020-12-31	1400
2021-03-31	229
2021-06-30	246
2021-09-30	146
2021-12-31	150
2022-03-31	246
2022-06-30	130
2022-09-30	306
2022-12-31	191
2023-03-31	226
2023-06-30	283
2023-09-30	415