Quarter	US dollars
2004-12-31	92
2005-03-31	-47
2005-06-30	247
2005-09-30	225
2005-12-31	-1111
2006-03-31	-1145
2006-06-30	-1050
2006-09-30	-1368
2006-12-31	-1575
2007-03-31	-1579
2007-06-30	-3690
2007-09-30	-3136
2007-12-31	-2737
2008-03-31	-3184
2008-06-30	-2780
2008-09-30	-1878
2008-12-31	-282
2009-03-31	-1842
2009-06-30	-1041
2009-09-30	-952
2009-12-31	-212
2010-03-31	-552
2010-06-30	-3292
2010-09-30	-2982
2010-12-31	-2621
2011-03-31	-2356
2011-06-30	-1867
2011-09-30	-1857
2011-12-31	-1194
2012-03-31	-1187
2012-06-30	-798
2012-09-30	-772
2012-12-31	-184
2013-03-31	-38
2013-06-30	-137
2013-09-30	-96
2013-12-31	-271
2014-03-31	-47
2014-06-30	67
2014-09-30	110
2014-12-31	52
2015-03-31	-89
2015-06-30	-31
2015-09-30	476
2015-12-31	413
2016-03-31	351
2016-06-30	324
2016-09-30	846
2016-12-31	166
2017-03-31	109
2017-06-30	-721
2017-09-30	-977
2017-12-31	-767
2018-03-31	-432
2018-06-30	169
2018-09-30	797
2018-12-31	499
2019-03-31	1140
2019-06-30	2570
2019-09-30	1520
2019-12-31	876
2020-03-31	892
2020-06-30	582
2020-09-30	-247
2020-12-31	169
2021-03-31	95
2021-06-30	213
2021-09-30	86
2021-12-31	124
2022-03-31	265
2022-06-30	351
2022-09-30	388
2022-12-31	220
2023-03-31	117
2023-06-30	202
2023-09-30	160