Quarter	US dollars
2004-12-31	161
2005-03-31	166
2005-06-30	111
2005-09-30	71
2005-12-31	19
2006-03-31	241
2006-06-30	263
2006-09-30	224
2006-12-31	356
2007-03-31	186
2007-06-30	169
2007-09-30	218
2007-12-31	233
2008-03-31	40
2008-06-30	46
2008-09-30	59
2008-12-31	17
2009-03-31	24
2009-06-30	43
2009-09-30	321
2009-12-31	289
2010-03-31	26
2010-06-30	205
2010-09-30	112
2010-12-31	335
2011-03-31	261
2011-06-30	172
2011-09-30	234
2011-12-31	113
2012-03-31	499
2012-06-30	585
2012-09-30	76
2012-12-31	61
2013-03-31	68
2013-06-30	1221
2013-09-30	1537
2013-12-31	590
2014-03-31	132
2014-06-30	53
2014-09-30	112
2014-12-31	95
2015-03-31	91
2015-06-30	131
2015-09-30	129
2015-12-31	163
2016-03-31	309
2016-06-30	83
2016-09-30	238
2016-12-31	78
2017-03-31	113
2017-06-30	265
2017-09-30	333
2017-12-31	118
2018-03-31	187
2018-06-30	323
2018-09-30	309
2018-12-31	286
2019-03-31	175
2019-06-30	449
2019-09-30	638
2019-12-31	299
2020-03-31	186
2020-06-30	252
2020-09-30	256
2020-12-31	186
2021-03-31	170
2021-06-30	115
2021-09-30	81
2021-12-31	137
2022-03-31	229
2022-06-30	187
2022-09-30	73
2022-12-31	169
2023-03-31	207
2023-06-30	141
2023-09-30	53