Quarter	US dollars
2004-12-31	83
2005-03-31	0
2005-06-30	-5
2005-09-30	-12
2005-12-31	-34
2006-03-31	-66
2006-06-30	-154
2006-09-30	-224
2006-12-31	-102
2007-03-31	-210
2007-06-30	-100
2007-09-30	-324
2007-12-31	-60
2008-03-31	-284
2008-06-30	-1097
2008-09-30	-905
2008-12-31	437
2009-03-31	-43
2009-06-30	-361
2009-09-30	-115
2009-12-31	-358
2010-03-31	89
2010-06-30	21
2010-09-30	436
2010-12-31	529
2011-03-31	138
2011-06-30	-2
2011-09-30	-97
2011-12-31	-9
2012-03-31	-66
2012-06-30	-53
2012-09-30	-81
2012-12-31	-424
2013-03-31	-499
2013-06-30	-88
2013-09-30	-89
2013-12-31	-304
2014-03-31	48
2014-06-30	27
2014-09-30	37
2014-12-31	17
2015-03-31	284
2015-06-30	-189
2015-09-30	-285
2015-12-31	-135
2016-03-31	-111
2016-06-30	-173
2016-09-30	-62
2016-12-31	109
2017-03-31	-138
2017-06-30	-213
2017-09-30	-157
2017-12-31	-112
2018-03-31	-189
2018-06-30	-161
2018-09-30	-145
2018-12-31	-272
2019-03-31	-447
2019-06-30	-745
2019-09-30	-1236
2019-12-31	-815
2020-03-31	-2591
2020-06-30	-2209
2020-09-30	-1913
2020-12-31	-1534
2021-03-31	-922
2021-06-30	-1067
2021-09-30	-1017
2021-12-31	-779
2022-03-31	-21
2022-06-30	-802
2022-09-30	-1155
2022-12-31	-182
2023-03-31	66
2023-06-30	-22
2023-09-30	-147