Quarter	US dollars
2004-12-31	-140
2005-03-31	-233
2005-06-30	-255
2005-09-30	-299
2005-12-31	-302
2006-03-31	-250
2006-06-30	-200
2006-09-30	-404
2006-12-31	-270
2007-03-31	-173
2007-06-30	-221
2007-09-30	43
2007-12-31	-305
2008-03-31	52
2008-06-30	277
2008-09-30	75
2008-12-31	349
2009-03-31	-489
2009-06-30	-578
2009-09-30	-307
2009-12-31	-501
2010-03-31	-1456
2010-06-30	-1161
2010-09-30	-833
2010-12-31	-482
2011-03-31	-67
2011-06-30	212
2011-09-30	260
2011-12-31	142
2012-03-31	-1036
2012-06-30	-795
2012-09-30	-166
2012-12-31	-202
2013-03-31	200
2013-06-30	76
2013-09-30	188
2013-12-31	119
2014-03-31	2
2014-06-30	38
2014-09-30	253
2014-12-31	471
2015-03-31	1707
2015-06-30	431
2015-09-30	348
2015-12-31	448
2016-03-31	204
2016-06-30	289
2016-09-30	395
2016-12-31	236
2017-03-31	311
2017-06-30	-191
2017-09-30	-2274
2017-12-31	-1825
2018-03-31	-1576
2018-06-30	-1661
2018-09-30	-1883
2018-12-31	-1881
2019-03-31	-2228
2019-06-30	-1641
2019-09-30	-1721
2019-12-31	-1449
2020-03-31	-1442
2020-06-30	-373
2020-09-30	-116
2020-12-31	-442
2021-03-31	491
2021-06-30	-430
2021-09-30	65
2021-12-31	174
2022-03-31	-111
2022-06-30	-100
2022-09-30	-416
2022-12-31	-621
2023-03-31	-521
2023-06-30	-382
2023-09-30	-507