Quarter	US dollars
2004-12-31	61
2005-03-31	-15
2005-06-30	-22
2005-09-30	-157
2005-12-31	-405
2006-03-31	-550
2006-06-30	-527
2006-09-30	-540
2006-12-31	-726
2007-03-31	-763
2007-06-30	-889
2007-09-30	-823
2007-12-31	-1557
2008-03-31	-1668
2008-06-30	-697
2008-09-30	-599
2008-12-31	-897
2009-03-31	-1191
2009-06-30	-1148
2009-09-30	-1150
2009-12-31	-1188
2010-03-31	-992
2010-06-30	-917
2010-09-30	-654
2010-12-31	-233
2011-03-31	-1087
2011-06-30	19
2011-09-30	-114
2011-12-31	-110
2012-03-31	-1052
2012-06-30	152
2012-09-30	575
2012-12-31	331
2013-03-31	-581
2013-06-30	161
2013-09-30	185
2013-12-31	-616
2014-03-31	-462
2014-06-30	-646
2014-09-30	-639
2014-12-31	-587
2015-03-31	-549
2015-06-30	624
2015-09-30	6
2015-12-31	7
2016-03-31	24
2016-06-30	23
2016-09-30	16
2016-12-31	25
2017-03-31	10
2017-06-30	0
2017-09-30	28
2017-12-31	-3
2018-03-31	-1
2018-06-30	-4
2018-09-30	0
2018-12-31	-1
2019-03-31	-3
2019-06-30	-3
2019-09-30	-1
2019-12-31	-1
2020-03-31	-1
2020-06-30	-1
2020-09-30	-1
2020-12-31	-1
2021-03-31	-1
2021-06-30	-1
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	1
2022-12-31	1
2023-03-31	0
2023-06-30	0
2023-09-30	0