Quarter	US dollars
2004-12-31	-4185
2005-03-31	-5743
2005-06-30	-6310
2005-09-30	-6720
2005-12-31	-6115
2006-03-31	-6924
2006-06-30	-6434
2006-09-30	-5681
2006-12-31	-7662
2007-03-31	-7000
2007-06-30	-1876
2007-09-30	-1571
2007-12-31	4028
2008-03-31	4748
2008-06-30	4084
2008-09-30	258
2008-12-31	556
2009-03-31	798
2009-06-30	3338
2009-09-30	-2229
2009-12-31	-26502
2010-03-31	-28923
2010-06-30	-33639
2010-09-30	-33722
2010-12-31	-34607
2011-03-31	-31930
2011-06-30	-31695
2011-09-30	-28940
2011-12-31	-20098
2012-03-31	-20927
2012-06-30	-17106
2012-09-30	-22379
2012-12-31	-6711
2013-03-31	-5746
2013-06-30	-3824
2013-09-30	-2615
2013-12-31	-2892
2014-03-31	-295
2014-06-30	132
2014-09-30	-571
2014-12-31	-1167
2015-03-31	-1451
2015-06-30	-1821
2015-09-30	195
2015-12-31	-3478
2016-03-31	-2646
2016-06-30	-1696
2016-09-30	-1439
2016-12-31	-1494
2017-03-31	-2075
2017-06-30	-331
2017-09-30	-330
2017-12-31	-678
2018-03-31	-76
2018-06-30	1656
2018-09-30	1258
2018-12-31	963
2019-03-31	726
2019-06-30	1177
2019-09-30	-402
2019-12-31	210
2020-03-31	1839
2020-06-30	837
2020-09-30	-327
2020-12-31	-673
2021-03-31	-83
2021-06-30	97
2021-09-30	86
2021-12-31	-745
2022-03-31	-1186
2022-06-30	450
2022-09-30	-1300
2022-12-31	-813
2023-03-31	1348
2023-06-30	1278
2023-09-30	2330