Quarter	US dollars
2004-12-31	-48
2005-03-31	-74
2005-06-30	-68
2005-09-30	-64
2005-12-31	-89
2006-03-31	-85
2006-06-30	-104
2006-09-30	-112
2006-12-31	-115
2007-03-31	-406
2007-06-30	-516
2007-09-30	-410
2007-12-31	-456
2008-03-31	-535
2008-06-30	-625
2008-09-30	-590
2008-12-31	-674
2009-03-31	-557
2009-06-30	-636
2009-09-30	-520
2009-12-31	-1429
2010-03-31	-1524
2010-06-30	-1703
2010-09-30	-1199
2010-12-31	-1335
2011-03-31	-1526
2011-06-30	-2858
2011-09-30	-1488
2011-12-31	-1027
2012-03-31	-1157
2012-06-30	-1081
2012-09-30	-975
2012-12-31	270
2013-03-31	76
2013-06-30	53
2013-09-30	91
2013-12-31	88
2014-03-31	168
2014-06-30	180
2014-09-30	32
2014-12-31	103
2015-03-31	98
2015-06-30	58
2015-09-30	41
2015-12-31	12
2016-03-31	-37
2016-06-30	-66
2016-09-30	134
2016-12-31	171
2017-03-31	144
2017-06-30	129
2017-09-30	152
2017-12-31	86
2018-03-31	-53
2018-06-30	103
2018-09-30	103
2018-12-31	14
2019-03-31	106
2019-06-30	211
2019-09-30	122
2019-12-31	124
2020-03-31	53
2020-06-30	124
2020-09-30	112
2020-12-31	119
2021-03-31	116
2021-06-30	202
2021-09-30	175
2021-12-31	160
2022-03-31	121
2022-06-30	104
2022-09-30	94
2022-12-31	99
2023-03-31	90
2023-06-30	90
2023-09-30	122