Quarter	US dollars
2004-12-31	-173
2005-03-31	-282
2005-06-30	-373
2005-09-30	-152
2005-12-31	-156
2006-03-31	252
2006-06-30	279
2006-09-30	592
2006-12-31	620
2007-03-31	506
2007-06-30	534
2007-09-30	746
2007-12-31	687
2008-03-31	642
2008-06-30	633
2008-09-30	531
2008-12-31	576
2009-03-31	525
2009-06-30	520
2009-09-30	352
2009-12-31	157
2010-03-31	130
2010-06-30	-126
2010-09-30	-159
2010-12-31	116
2011-03-31	-27
2011-06-30	83
2011-09-30	30
2011-12-31	62
2012-03-31	125
2012-06-30	132
2012-09-30	69
2012-12-31	315
2013-03-31	279
2013-06-30	352
2013-09-30	372
2013-12-31	291
2014-03-31	90
2014-06-30	-214
2014-09-30	-208
2014-12-31	-197
2015-03-31	-65
2015-06-30	74
2015-09-30	80
2015-12-31	175
2016-03-31	141
2016-06-30	132
2016-09-30	-13
2016-12-31	-2505
2017-03-31	-2504
2017-06-30	-2510
2017-09-30	-2553
2017-12-31	-2514
2018-03-31	-2522
2018-06-30	-2381
2018-09-30	-2650
2018-12-31	-2748
2019-03-31	-2730
2019-06-30	-2794
2019-09-30	-392
2019-12-31	-329
2020-03-31	-597
2020-06-30	-388
2020-09-30	-389
2020-12-31	-323
2021-03-31	-637
2021-06-30	-651
2021-09-30	-1642
2021-12-31	-1625
2022-03-31	-1570
2022-06-30	-1479
2022-09-30	-1297
2022-12-31	-1333
2023-03-31	-1366
2023-06-30	-1362
2023-09-30	-1235