Quarter	US dollars
2004-12-31	-275
2005-03-31	-355
2005-06-30	-265
2005-09-30	-221
2005-12-31	-261
2006-03-31	-184
2006-06-30	-231
2006-09-30	-247
2006-12-31	-133
2007-03-31	-127
2007-06-30	-263
2007-09-30	-149
2007-12-31	-217
2008-03-31	32
2008-06-30	-34
2008-09-30	112
2008-12-31	-132
2009-03-31	-295
2009-06-30	270
2009-09-30	216
2009-12-31	-81
2010-03-31	-67
2010-06-30	-1213
2010-09-30	-1410
2010-12-31	-902
2011-03-31	-723
2011-06-30	-808
2011-09-30	-276
2011-12-31	-186
2012-03-31	-213
2012-06-30	-99
2012-09-30	-53
2012-12-31	-60
2013-03-31	-70
2013-06-30	3
2013-09-30	549
2013-12-31	-283
2014-03-31	-313
2014-06-30	-171
2014-09-30	-32
2014-12-31	5
2015-03-31	-40
2015-06-30	-77
2015-09-30	-164
2015-12-31	-166
2016-03-31	-214
2016-06-30	-265
2016-09-30	-188
2016-12-31	-180
2017-03-31	-73
2017-06-30	-200
2017-09-30	-199
2017-12-31	-118
2018-03-31	-234
2018-06-30	-273
2018-09-30	-282
2018-12-31	-258
2019-03-31	-179
2019-06-30	-258
2019-09-30	-434
2019-12-31	-283
2020-03-31	-155
2020-06-30	-138
2020-09-30	-153
2020-12-31	-120
2021-03-31	-105
2021-06-30	-57
2021-09-30	-11
2021-12-31	-327
2022-03-31	-286
2022-06-30	-203
2022-09-30	-223
2022-12-31	-229
2023-03-31	-231
2023-06-30	-219
2023-09-30	-224