Quarter	US dollars
2004-12-31	424
2005-03-31	198
2005-06-30	168
2005-09-30	145
2005-12-31	184
2006-03-31	179
2006-06-30	137
2006-09-30	118
2006-12-31	106
2007-03-31	204
2007-06-30	187
2007-09-30	149
2007-12-31	181
2008-03-31	83
2008-06-30	88
2008-09-30	89
2008-12-31	96
2009-03-31	107
2009-06-30	114
2009-09-30	329
2009-12-31	270
2010-03-31	250
2010-06-30	346
2010-09-30	246
2010-12-31	168
2011-03-31	258
2011-06-30	214
2011-09-30	310
2011-12-31	289
2012-03-31	270
2012-06-30	541
2012-09-30	567
2012-12-31	577
2013-03-31	402
2013-06-30	305
2013-09-30	256
2013-12-31	226
2014-03-31	303
2014-06-30	229
2014-09-30	177
2014-12-31	122
2015-03-31	53
2015-06-30	102
2015-09-30	82
2015-12-31	73
2016-03-31	101
2016-06-30	101
2016-09-30	81
2016-12-31	71
2017-03-31	99
2017-06-30	78
2017-09-30	99
2017-12-31	49
2018-03-31	631
2018-06-30	614
2018-09-30	557
2018-12-31	540
2019-03-31	597
2019-06-30	610
2019-09-30	627
2019-12-31	577
2020-03-31	651
2020-06-30	640
2020-09-30	666
2020-12-31	616
2021-03-31	556
2021-06-30	536
2021-09-30	603
2021-12-31	538
2022-03-31	519
2022-06-30	336
2022-09-30	475
2022-12-31	368
2023-03-31	213
2023-06-30	29
2023-09-30	8