Quarter	US dollars
2004-12-31	36
2005-03-31	45
2005-06-30	61
2005-09-30	64
2005-12-31	98
2006-03-31	83
2006-06-30	52
2006-09-30	50
2006-12-31	53
2007-03-31	69
2007-06-30	98
2007-09-30	90
2007-12-31	123
2008-03-31	70
2008-06-30	60
2008-09-30	93
2008-12-31	102
2009-03-31	460
2009-06-30	448
2009-09-30	251
2009-12-31	257
2010-03-31	241
2010-06-30	295
2010-09-30	536
2010-12-31	534
2011-03-31	178
2011-06-30	162
2011-09-30	137
2011-12-31	383
2012-03-31	737
2012-06-30	742
2012-09-30	780
2012-12-31	795
2013-03-31	896
2013-06-30	754
2013-09-30	725
2013-12-31	317
2014-03-31	745
2014-06-30	1082
2014-09-30	1051
2014-12-31	823
2015-03-31	757
2015-06-30	893
2015-09-30	901
2015-12-31	914
2016-03-31	858
2016-06-30	680
2016-09-30	1157
2016-12-31	1154
2017-03-31	1039
2017-06-30	136
2017-09-30	131
2017-12-31	134
2018-03-31	168
2018-06-30	297
2018-09-30	424
2018-12-31	356
2019-03-31	477
2019-06-30	311
2019-09-30	269
2019-12-31	284
2020-03-31	272
2020-06-30	263
2020-09-30	271
2020-12-31	233
2021-03-31	330
2021-06-30	268
2021-09-30	202
2021-12-31	170
2022-03-31	199
2022-06-30	206
2022-09-30	161
2022-12-31	140
2023-03-31	100
2023-06-30	142
2023-09-30	278