Quarter	US dollars
2004-12-31	549
2005-03-31	1064
2005-06-30	889
2005-09-30	854
2005-12-31	831
2006-03-31	753
2006-06-30	669
2006-09-30	635
2006-12-31	611
2007-03-31	535
2007-06-30	508
2007-09-30	475
2007-12-31	514
2008-03-31	495
2008-06-30	456
2008-09-30	262
2008-12-31	387
2009-03-31	335
2009-06-30	326
2009-09-30	304
2009-12-31	292
2010-03-31	331
2010-06-30	229
2010-09-30	189
2010-12-31	136
2011-03-31	231
2011-06-30	239
2011-09-30	76
2011-12-31	148
2012-03-31	128
2012-06-30	127
2012-09-30	158
2012-12-31	146
2013-03-31	71
2013-06-30	79
2013-09-30	52
2013-12-31	177
2014-03-31	110
2014-06-30	104
2014-09-30	102
2014-12-31	59
2015-03-31	49
2015-06-30	184
2015-09-30	188
2015-12-31	89
2016-03-31	86
2016-06-30	124
2016-09-30	147
2016-12-31	177
2017-03-31	35
2017-06-30	32
2017-09-30	17
2017-12-31	66
2018-03-31	25
2018-06-30	21
2018-09-30	34
2018-12-31	69
2019-03-31	56
2019-06-30	34
2019-09-30	67
2019-12-31	16
2020-03-31	38
2020-06-30	33
2020-09-30	31
2020-12-31	37
2021-03-31	37
2021-06-30	10
2021-09-30	3
2021-12-31	0
2022-03-31	0
2022-06-30	5
2022-09-30	11
2022-12-31	14
2023-03-31	11
2023-06-30	7
2023-09-30	0