Quarter	US dollars
2004-12-31	38
2005-03-31	23
2005-06-30	29
2005-09-30	42
2005-12-31	17
2006-03-31	78
2006-06-30	37
2006-09-30	24
2006-12-31	22
2007-03-31	39
2007-06-30	106
2007-09-30	1039
2007-12-31	940
2008-03-31	994
2008-06-30	1170
2008-09-30	1155
2008-12-31	2949
2009-03-31	269
2009-06-30	-400
2009-09-30	-464
2009-12-31	-778
2010-03-31	-510
2010-06-30	-265
2010-09-30	-282
2010-12-31	-110
2011-03-31	-210
2011-06-30	-95
2011-09-30	193
2011-12-31	83
2012-03-31	11
2012-06-30	-41
2012-09-30	60
2012-12-31	-150
2013-03-31	-109
2013-06-30	89
2013-09-30	143
2013-12-31	61
2014-03-31	2886
2014-06-30	3175
2014-09-30	2811
2014-12-31	3323
2015-03-31	3566
2015-06-30	2866
2015-09-30	2689
2015-12-31	2605
2016-03-31	2677
2016-06-30	3294
2016-09-30	2965
2016-12-31	2597
2017-03-31	2349
2017-06-30	2213
2017-09-30	2117
2017-12-31	315
2018-03-31	76
2018-06-30	34
2018-09-30	1240
2018-12-31	1461
2019-03-31	1053
2019-06-30	-80
2019-09-30	-2
2019-12-31	143
2020-03-31	-33
2020-06-30	430
2020-09-30	326
2020-12-31	450
2021-03-31	430
2021-06-30	1164
2021-09-30	1193
2021-12-31	1115
2022-03-31	1154
2022-06-30	933
2022-09-30	1206
2022-12-31	1200
2023-03-31	793
2023-06-30	851
2023-09-30	928