Quarter	US dollars
2004-12-31	8
2005-03-31	57
2005-06-30	292
2005-09-30	262
2005-12-31	302
2006-03-31	342
2006-06-30	468
2006-09-30	325
2006-12-31	425
2007-03-31	426
2007-06-30	467
2007-09-30	430
2007-12-31	426
2008-03-31	443
2008-06-30	462
2008-09-30	164
2008-12-31	375
2009-03-31	446
2009-06-30	779
2009-09-30	621
2009-12-31	544
2010-03-31	645
2010-06-30	747
2010-09-30	2689
2010-12-31	850
2011-03-31	818
2011-06-30	581
2011-09-30	301
2011-12-31	288
2012-03-31	342
2012-06-30	395
2012-09-30	547
2012-12-31	686
2013-03-31	676
2013-06-30	504
2013-09-30	372
2013-12-31	506
2014-03-31	550
2014-06-30	554
2014-09-30	525
2014-12-31	378
2015-03-31	229
2015-06-30	204
2015-09-30	177
2015-12-31	196
2016-03-31	219
2016-06-30	255
2016-09-30	242
2016-12-31	301
2017-03-31	294
2017-06-30	242
2017-09-30	197
2017-12-31	195
2018-03-31	195
2018-06-30	243
2018-09-30	223
2018-12-31	120
2019-03-31	265
2019-06-30	120
2019-09-30	155
2019-12-31	147
2020-03-31	151
2020-06-30	130
2020-09-30	111
2020-12-31	109
2021-03-31	124
2021-06-30	112
2021-09-30	77
2021-12-31	94
2022-03-31	70
2022-06-30	86
2022-09-30	74
2022-12-31	52
2023-03-31	27
2023-06-30	38
2023-09-30	40