Quarter	US dollars
2004-12-31	824
2005-03-31	645
2005-06-30	482
2005-09-30	228
2005-12-31	235
2006-03-31	222
2006-06-30	227
2006-09-30	368
2006-12-31	352
2007-03-31	1002
2007-06-30	1866
2007-09-30	4006
2007-12-31	2280
2008-03-31	76
2008-06-30	74
2008-09-30	39
2008-12-31	19
2009-03-31	40
2009-06-30	54
2009-09-30	94
2009-12-31	139
2010-03-31	138
2010-06-30	203
2010-09-30	170
2010-12-31	103
2011-03-31	212
2011-06-30	238
2011-09-30	234
2011-12-31	292
2012-03-31	227
2012-06-30	221
2012-09-30	234
2012-12-31	163
2013-03-31	226
2013-06-30	247
2013-09-30	217
2013-12-31	223
2014-03-31	213
2014-06-30	258
2014-09-30	256
2014-12-31	245
2015-03-31	252
2015-06-30	204
2015-09-30	209
2015-12-31	225
2016-03-31	285
2016-06-30	287
2016-09-30	310
2016-12-31	391
2017-03-31	537
2017-06-30	65
2017-09-30	83
2017-12-31	127
2018-03-31	116
2018-06-30	741
2018-09-30	827
2018-12-31	848
2019-03-31	395
2019-06-30	179
2019-09-30	105
2019-12-31	104
2020-03-31	68
2020-06-30	38
2020-09-30	37
2020-12-31	60
2021-03-31	63
2021-06-30	111
2021-09-30	127
2021-12-31	158
2022-03-31	147
2022-06-30	68
2022-09-30	55
2022-12-31	79
2023-03-31	78
2023-06-30	34
2023-09-30	48