Quarter	US dollars
2004-12-31	-23
2005-03-31	-38
2005-06-30	-41
2005-09-30	-41
2005-12-31	-48
2006-03-31	-52
2006-06-30	-54
2006-09-30	-32
2006-12-31	-22
2007-03-31	-25
2007-06-30	-10
2007-09-30	-29
2007-12-31	78
2008-03-31	-147
2008-06-30	-92
2008-09-30	-84
2008-12-31	-62
2009-03-31	-24
2009-06-30	-23
2009-09-30	-21
2009-12-31	-79
2010-03-31	-79
2010-06-30	-112
2010-09-30	88
2010-12-31	-36
2011-03-31	50
2011-06-30	-58
2011-09-30	92
2011-12-31	29
2012-03-31	-75
2012-06-30	-31
2012-09-30	-342
2012-12-31	-346
2013-03-31	-352
2013-06-30	-193
2013-09-30	-277
2013-12-31	-266
2014-03-31	-260
2014-06-30	-198
2014-09-30	-196
2014-12-31	-309
2015-03-31	-233
2015-06-30	-214
2015-09-30	-201
2015-12-31	-156
2016-03-31	-115
2016-06-30	-111
2016-09-30	-97
2016-12-31	-134
2017-03-31	-91
2017-06-30	-251
2017-09-30	-354
2017-12-31	-39
2018-03-31	-69
2018-06-30	-18
2018-09-30	-67
2018-12-31	-72
2019-03-31	-81
2019-06-30	-116
2019-09-30	-86
2019-12-31	-125
2020-03-31	-213
2020-06-30	-256
2020-09-30	-257
2020-12-31	-259
2021-03-31	-120
2021-06-30	-134
2021-09-30	-247
2021-12-31	-77
2022-03-31	-22
2022-06-30	-28
2022-09-30	-569
2022-12-31	-358
2023-03-31	-383
2023-06-30	-367
2023-09-30	-188