Quarter	US dollars
2004-12-31	-499
2005-03-31	-745
2005-06-30	-853
2005-09-30	-364
2005-12-31	-409
2006-03-31	-463
2006-06-30	-372
2006-09-30	-361
2006-12-31	358
2007-03-31	-71
2007-06-30	-544
2007-09-30	-234
2007-12-31	22
2008-03-31	-99
2008-06-30	597
2008-09-30	317
2008-12-31	-624
2009-03-31	1270
2009-06-30	110
2009-09-30	125
2009-12-31	-66
2010-03-31	161
2010-06-30	181
2010-09-30	184
2010-12-31	-913
2011-03-31	199
2011-06-30	385
2011-09-30	30
2011-12-31	-263
2012-03-31	-128
2012-06-30	631
2012-09-30	186
2012-12-31	47
2013-03-31	206
2013-06-30	185
2013-09-30	-410
2013-12-31	88
2014-03-31	38
2014-06-30	-166
2014-09-30	-37
2014-12-31	56
2015-03-31	-53
2015-06-30	28
2015-09-30	-462
2015-12-31	-422
2016-03-31	-559
2016-06-30	-162
2016-09-30	-348
2016-12-31	-111
2017-03-31	-46
2017-06-30	225
2017-09-30	-154
2017-12-31	-19
2018-03-31	59
2018-06-30	-8
2018-09-30	-104
2018-12-31	-40
2019-03-31	280
2019-06-30	190
2019-09-30	515
2019-12-31	234
2020-03-31	110
2020-06-30	-85
2020-09-30	578
2020-12-31	743
2021-03-31	854
2021-06-30	239
2021-09-30	247
2021-12-31	243
2022-03-31	120
2022-06-30	64
2022-09-30	261
2022-12-31	244
2023-03-31	250
2023-06-30	28
2023-09-30	-22