Quarter	US dollars
2004-12-31	403
2005-03-31	272
2005-06-30	224
2005-09-30	42
2005-12-31	-21
2006-03-31	-12
2006-06-30	-26
2006-09-30	-26
2006-12-31	-20
2007-03-31	-16
2007-06-30	-14
2007-09-30	-33
2007-12-31	-36
2008-03-31	-4
2008-06-30	6
2008-09-30	-23
2008-12-31	-29
2009-03-31	-143
2009-06-30	-137
2009-09-30	-40
2009-12-31	-44
2010-03-31	-23
2010-06-30	-1
2010-09-30	-27
2010-12-31	-25
2011-03-31	-27
2011-06-30	-26
2011-09-30	-33
2011-12-31	-93
2012-03-31	-97
2012-06-30	-115
2012-09-30	-66
2012-12-31	84
2013-03-31	71
2013-06-30	58
2013-09-30	44
2013-12-31	31
2014-03-31	17
2014-06-30	80
2014-09-30	78
2014-12-31	133
2015-03-31	134
2015-06-30	126
2015-09-30	121
2015-12-31	111
2016-03-31	88
2016-06-30	103
2016-09-30	96
2016-12-31	86
2017-03-31	75
2017-06-30	-57
2017-09-30	-42
2017-12-31	-22
2018-03-31	-27
2018-06-30	-26
2018-09-30	-29
2018-12-31	-128
2019-03-31	-83
2019-06-30	-83
2019-09-30	-94
2019-12-31	-100
2020-03-31	-48
2020-06-30	-32
2020-09-30	-50
2020-12-31	-48
2021-03-31	-36
2021-06-30	-51
2021-09-30	-71
2021-12-31	-63
2022-03-31	-46
2022-06-30	-70
2022-09-30	-77
2022-12-31	-37
2023-03-31	-35
2023-06-30	-32
2023-09-30	-36