Quarter	US dollars
2004-12-31	52
2005-03-31	45
2005-06-30	48
2005-09-30	53
2005-12-31	70
2006-03-31	62
2006-06-30	115
2006-09-30	110
2006-12-31	119
2007-03-31	159
2007-06-30	179
2007-09-30	196
2007-12-31	179
2008-03-31	167
2008-06-30	175
2008-09-30	160
2008-12-31	105
2009-03-31	193
2009-06-30	138
2009-09-30	133
2009-12-31	107
2010-03-31	191
2010-06-30	211
2010-09-30	213
2010-12-31	121
2011-03-31	151
2011-06-30	138
2011-09-30	117
2011-12-31	122
2012-03-31	102
2012-06-30	102
2012-09-30	140
2012-12-31	131
2013-03-31	82
2013-06-30	70
2013-09-30	108
2013-12-31	102
2014-03-31	88
2014-06-30	108
2014-09-30	104
2014-12-31	75
2015-03-31	67
2015-06-30	68
2015-09-30	79
2015-12-31	50
2016-03-31	45
2016-06-30	34
2016-09-30	22
2016-12-31	16
2017-03-31	18
2017-06-30	29
2017-09-30	28
2017-12-31	20
2018-03-31	25
2018-06-30	9
2018-09-30	10
2018-12-31	5
2019-03-31	20
2019-06-30	3
2019-09-30	5
2019-12-31	1
2020-03-31	6
2020-06-30	-4
2020-09-30	1
2020-12-31	-4
2021-03-31	1
2021-06-30	17
2021-09-30	22
2021-12-31	15
2022-03-31	9
2022-06-30	10
2022-09-30	10
2022-12-31	7
2023-03-31	2
2023-06-30	4
2023-09-30	15