Quarter	US dollars
2004-12-31	13
2005-03-31	13
2005-06-30	25
2005-09-30	16
2005-12-31	51
2006-03-31	-17
2006-06-30	26
2006-09-30	19
2006-12-31	27
2007-03-31	4
2007-06-30	-2123
2007-09-30	-1791
2007-12-31	-2128
2008-03-31	-2564
2008-06-30	-3825
2008-09-30	-2486
2008-12-31	-6656
2009-03-31	-1753
2009-06-30	-479
2009-09-30	-446
2009-12-31	-452
2010-03-31	-558
2010-06-30	-453
2010-09-30	-520
2010-12-31	-279
2011-03-31	-425
2011-06-30	-454
2011-09-30	-446
2011-12-31	-499
2012-03-31	-447
2012-06-30	-582
2012-09-30	-673
2012-12-31	-577
2013-03-31	-507
2013-06-30	-367
2013-09-30	-288
2013-12-31	-364
2014-03-31	-5399
2014-06-30	-6045
2014-09-30	-6303
2014-12-31	-6686
2015-03-31	-6907
2015-06-30	-5134
2015-09-30	-5195
2015-12-31	-1947
2016-03-31	-2424
2016-06-30	-2409
2016-09-30	-2125
2016-12-31	-2170
2017-03-31	-415
2017-06-30	-386
2017-09-30	-109
2017-12-31	-124
2018-03-31	-95
2018-06-30	-186
2018-09-30	291
2018-12-31	-68
2019-03-31	-109
2019-06-30	-214
2019-09-30	-196
2019-12-31	-247
2020-03-31	-603
2020-06-30	-59
2020-09-30	-76
2020-12-31	-33
2021-03-31	-101
2021-06-30	135
2021-09-30	-44
2021-12-31	-66
2022-03-31	-483
2022-06-30	-591
2022-09-30	-377
2022-12-31	-1173
2023-03-31	-183
2023-06-30	-1278
2023-09-30	-1562