Quarter	US dollars
2004-12-31	54
2005-03-31	42
2005-06-30	4
2005-09-30	7
2005-12-31	3
2006-03-31	118
2006-06-30	176
2006-09-30	189
2006-12-31	168
2007-03-31	51
2007-06-30	38
2007-09-30	49
2007-12-31	26
2008-03-31	119
2008-06-30	259
2008-09-30	251
2008-12-31	180
2009-03-31	39
2009-06-30	66
2009-09-30	98
2009-12-31	84
2010-03-31	21
2010-06-30	33
2010-09-30	271
2010-12-31	584
2011-03-31	664
2011-06-30	520
2011-09-30	553
2011-12-31	368
2012-03-31	449
2012-06-30	420
2012-09-30	439
2012-12-31	611
2013-03-31	522
2013-06-30	499
2013-09-30	594
2013-12-31	127
2014-03-31	145
2014-06-30	123
2014-09-30	26
2014-12-31	28
2015-03-31	28
2015-06-30	35
2015-09-30	32
2015-12-31	21
2016-03-31	24
2016-06-30	34
2016-09-30	-6
2016-12-31	-21
2017-03-31	55
2017-06-30	39
2017-09-30	11
2017-12-31	62
2018-03-31	3
2018-06-30	3
2018-09-30	1
2018-12-31	-4
2019-03-31	-12
2019-06-30	32
2019-09-30	94
2019-12-31	-11
2020-03-31	9
2020-06-30	19
2020-09-30	9
2020-12-31	-7
2021-03-31	-29
2021-06-30	-79
2021-09-30	11
2021-12-31	20
2022-03-31	14
2022-06-30	26
2022-09-30	76
2022-12-31	7
2023-03-31	72
2023-06-30	17
2023-09-30	16