Quarter	US dollars
2004-12-31	-75
2005-03-31	-170
2005-06-30	-97
2005-09-30	-159
2005-12-31	-108
2006-03-31	-101
2006-06-30	-120
2006-09-30	-129
2006-12-31	-104
2007-03-31	-518
2007-06-30	-347
2007-09-30	-295
2007-12-31	-243
2008-03-31	-441
2008-06-30	-370
2008-09-30	-481
2008-12-31	-988
2009-03-31	-744
2009-06-30	-606
2009-09-30	-686
2009-12-31	-531
2010-03-31	-643
2010-06-30	-467
2010-09-30	-555
2010-12-31	-59
2011-03-31	-510
2011-06-30	-461
2011-09-30	-505
2011-12-31	-354
2012-03-31	-336
2012-06-30	-322
2012-09-30	-115
2012-12-31	-118
2013-03-31	-146
2013-06-30	-133
2013-09-30	-117
2013-12-31	-109
2014-03-31	-12
2014-06-30	24
2014-09-30	-24
2014-12-31	-66
2015-03-31	-65
2015-06-30	-30
2015-09-30	-170
2015-12-31	-110
2016-03-31	-32
2016-06-30	-60
2016-09-30	-60
2016-12-31	138
2017-03-31	-76
2017-06-30	-39
2017-09-30	-68
2017-12-31	-95
2018-03-31	-163
2018-06-30	-415
2018-09-30	-248
2018-12-31	-475
2019-03-31	-53
2019-06-30	-31
2019-09-30	-115
2019-12-31	-32
2020-03-31	-180
2020-06-30	-154
2020-09-30	-137
2020-12-31	-176
2021-03-31	-621
2021-06-30	-298
2021-09-30	-166
2021-12-31	-94
2022-03-31	-804
2022-06-30	-822
2022-09-30	-1672
2022-12-31	-327
2023-03-31	-130
2023-06-30	-358
2023-09-30	-595