Quarter	US dollars
2004-12-31	-8
2005-03-31	-8
2005-06-30	14
2005-09-30	14
2005-12-31	15
2006-03-31	16
2006-06-30	9
2006-09-30	15
2006-12-31	-8
2007-03-31	4
2007-06-30	-8
2007-09-30	-10
2007-12-31	-2
2008-03-31	0
2008-06-30	-10
2008-09-30	-11
2008-12-31	-9
2009-03-31	69
2009-06-30	15
2009-09-30	3
2009-12-31	-3
2010-03-31	-8
2010-06-30	-949
2010-09-30	-959
2010-12-31	-1077
2011-03-31	6
2011-06-30	11
2011-09-30	-11
2011-12-31	-9
2012-03-31	-8
2012-06-30	-6
2012-09-30	-6
2012-12-31	16
2013-03-31	24
2013-06-30	21
2013-09-30	2
2013-12-31	2
2014-03-31	18
2014-06-30	19
2014-09-30	16
2014-12-31	16
2015-03-31	18
2015-06-30	609
2015-09-30	506
2015-12-31	76
2016-03-31	75
2016-06-30	46
2016-09-30	40
2016-12-31	38
2017-03-31	10
2017-06-30	22
2017-09-30	574
2017-12-31	426
2018-03-31	421
2018-06-30	326
2018-09-30	344
2018-12-31	310
2019-03-31	341
2019-06-30	336
2019-09-30	301
2019-12-31	285
2020-03-31	298
2020-06-30	311
2020-09-30	305
2020-12-31	330
2021-03-31	342
2021-06-30	318
2021-09-30	316
2021-12-31	317
2022-03-31	329
2022-06-30	310
2022-09-30	279
2022-12-31	293
2023-03-31	295
2023-06-30	285
2023-09-30	361