Quarter	US dollars
2004-12-31	253
2005-03-31	250
2005-06-30	145
2005-09-30	180
2005-12-31	156
2006-03-31	144
2006-06-30	176
2006-09-30	118
2006-12-31	137
2007-03-31	212
2007-06-30	229
2007-09-30	139
2007-12-31	157
2008-03-31	260
2008-06-30	247
2008-09-30	298
2008-12-31	201
2009-03-31	252
2009-06-30	356
2009-09-30	478
2009-12-31	315
2010-03-31	267
2010-06-30	388
2010-09-30	695
2010-12-31	589
2011-03-31	396
2011-06-30	657
2011-09-30	608
2011-12-31	637
2012-03-31	662
2012-06-30	671
2012-09-30	505
2012-12-31	597
2013-03-31	894
2013-06-30	972
2013-09-30	1135
2013-12-31	1139
2014-03-31	1110
2014-06-30	964
2014-09-30	650
2014-12-31	507
2015-03-31	517
2015-06-30	632
2015-09-30	618
2015-12-31	840
2016-03-31	690
2016-06-30	658
2016-09-30	718
2016-12-31	589
2017-03-31	498
2017-06-30	573
2017-09-30	518
2017-12-31	465
2018-03-31	484
2018-06-30	442
2018-09-30	679
2018-12-31	970
2019-03-31	915
2019-06-30	737
2019-09-30	991
2019-12-31	583
2020-03-31	771
2020-06-30	803
2020-09-30	536
2020-12-31	797
2021-03-31	491
2021-06-30	415
2021-09-30	336
2021-12-31	305
2022-03-31	341
2022-06-30	164
2022-09-30	223
2022-12-31	357
2023-03-31	351
2023-06-30	390
2023-09-30	286