Quarter	US dollars
2004-12-31	40
2005-03-31	85
2005-06-30	59
2005-09-30	60
2005-12-31	57
2006-03-31	71
2006-06-30	85
2006-09-30	90
2006-12-31	90
2007-03-31	102
2007-06-30	126
2007-09-30	145
2007-12-31	111
2008-03-31	155
2008-06-30	193
2008-09-30	153
2008-12-31	154
2009-03-31	145
2009-06-30	135
2009-09-30	117
2009-12-31	126
2010-03-31	135
2010-06-30	106
2010-09-30	173
2010-12-31	164
2011-03-31	202
2011-06-30	225
2011-09-30	176
2011-12-31	250
2012-03-31	284
2012-06-30	287
2012-09-30	236
2012-12-31	288
2013-03-31	510
2013-06-30	504
2013-09-30	513
2013-12-31	426
2014-03-31	530
2014-06-30	480
2014-09-30	516
2014-12-31	510
2015-03-31	448
2015-06-30	376
2015-09-30	377
2015-12-31	381
2016-03-31	398
2016-06-30	353
2016-09-30	373
2016-12-31	375
2017-03-31	334
2017-06-30	225
2017-09-30	219
2017-12-31	312
2018-03-31	361
2018-06-30	422
2018-09-30	141
2018-12-31	437
2019-03-31	477
2019-06-30	585
2019-09-30	514
2019-12-31	672
2020-03-31	607
2020-06-30	7
2020-09-30	8
2020-12-31	5
2021-03-31	4
2021-06-30	3
2021-09-30	3
2021-12-31	3
2022-03-31	3
2022-06-30	3
2022-09-30	3
2022-12-31	2
2023-03-31	3
2023-06-30	3
2023-09-30	2