Quarter	US dollars
2004-12-31	-180
2005-03-31	-178
2005-06-30	-298
2005-09-30	-416
2005-12-31	-177
2006-03-31	-364
2006-06-30	-235
2006-09-30	749
2006-12-31	-90
2007-03-31	-206
2007-06-30	-369
2007-09-30	-448
2007-12-31	-677
2008-03-31	-769
2008-06-30	-515
2008-09-30	-73
2008-12-31	-200
2009-03-31	-449
2009-06-30	-198
2009-09-30	-467
2009-12-31	-565
2010-03-31	-617
2010-06-30	-808
2010-09-30	-985
2010-12-31	-971
2011-03-31	-1391
2011-06-30	-965
2011-09-30	-405
2011-12-31	-826
2012-03-31	-374
2012-06-30	-320
2012-09-30	-388
2012-12-31	-369
2013-03-31	-284
2013-06-30	-329
2013-09-30	-311
2013-12-31	-102
2014-03-31	-77
2014-06-30	-91
2014-09-30	-123
2014-12-31	-52
2015-03-31	-101
2015-06-30	-135
2015-09-30	15
2015-12-31	21
2016-03-31	-132
2016-06-30	-133
2016-09-30	-122
2016-12-31	-125
2017-03-31	-123
2017-06-30	-108
2017-09-30	-111
2017-12-31	-122
2018-03-31	-49
2018-06-30	325
2018-09-30	260
2018-12-31	22
2019-03-31	240
2019-06-30	237
2019-09-30	147
2019-12-31	293
2020-03-31	186
2020-06-30	261
2020-09-30	279
2020-12-31	262
2021-03-31	207
2021-06-30	224
2021-09-30	218
2021-12-31	259
2022-03-31	222
2022-06-30	219
2022-09-30	194
2022-12-31	205
2023-03-31	191
2023-06-30	150
2023-09-30	-19