Quarter	US dollars
2004-12-31	987
2005-03-31	688
2005-06-30	850
2005-09-30	766
2005-12-31	843
2006-03-31	1131
2006-06-30	884
2006-09-30	996
2006-12-31	1174
2007-03-31	898
2007-06-30	744
2007-09-30	1070
2007-12-31	569
2008-03-31	1793
2008-06-30	1140
2008-09-30	1508
2008-12-31	654
2009-03-31	761
2009-06-30	1115
2009-09-30	1948
2009-12-31	1140
2010-03-31	129
2010-06-30	202
2010-09-30	162
2010-12-31	211
2011-03-31	77
2011-06-30	589
2011-09-30	226
2011-12-31	164
2012-03-31	483
2012-06-30	224
2012-09-30	417
2012-12-31	171
2013-03-31	231
2013-06-30	171
2013-09-30	141
2013-12-31	154
2014-03-31	292
2014-06-30	145
2014-09-30	191
2014-12-31	659
2015-03-31	376
2015-06-30	393
2015-09-30	465
2015-12-31	1048
2016-03-31	296
2016-06-30	1150
2016-09-30	183
2016-12-31	79
2017-03-31	299
2017-06-30	130
2017-09-30	39
2017-12-31	336
2018-03-31	122
2018-06-30	82
2018-09-30	196
2018-12-31	194
2019-03-31	26
2019-06-30	42
2019-09-30	43
2019-12-31	79
2020-03-31	140
2020-06-30	59
2020-09-30	92
2020-12-31	90
2021-03-31	65
2021-06-30	70
2021-09-30	133
2021-12-31	-54
2022-03-31	0
2022-06-30	43
2022-09-30	81
2022-12-31	21
2023-03-31	64
2023-06-30	41
2023-09-30	59