Quarter	US dollars
2004-12-31	-301
2005-03-31	-397
2005-06-30	-156
2005-09-30	-11
2005-12-31	-1088
2006-03-31	-1127
2006-06-30	-701
2006-09-30	-523
2006-12-31	-816
2007-03-31	-1055
2007-06-30	-1093
2007-09-30	-1628
2007-12-31	-2960
2008-03-31	-5440
2008-06-30	-3578
2008-09-30	-3381
2008-12-31	-3220
2009-03-31	-1723
2009-06-30	-1976
2009-09-30	-1052
2009-12-31	-1316
2010-03-31	-1269
2010-06-30	-1233
2010-09-30	-1190
2010-12-31	-2406
2011-03-31	-2791
2011-06-30	-3404
2011-09-30	-2136
2011-12-31	-2223
2012-03-31	-1745
2012-06-30	-1090
2012-09-30	-1213
2012-12-31	53
2013-03-31	181
2013-06-30	30
2013-09-30	194
2013-12-31	21
2014-03-31	-544
2014-06-30	-629
2014-09-30	-733
2014-12-31	-540
2015-03-31	-609
2015-06-30	-521
2015-09-30	-95
2015-12-31	-124
2016-03-31	55
2016-06-30	-105
2016-09-30	-47
2016-12-31	-239
2017-03-31	-303
2017-06-30	-464
2017-09-30	-225
2017-12-31	-477
2018-03-31	-356
2018-06-30	-210
2018-09-30	-373
2018-12-31	-472
2019-03-31	-253
2019-06-30	-139
2019-09-30	-313
2019-12-31	-124
2020-03-31	-94
2020-06-30	-456
2020-09-30	-171
2020-12-31	-283
2021-03-31	-259
2021-06-30	-687
2021-09-30	-503
2021-12-31	-1848
2022-03-31	-1568
2022-06-30	-1338
2022-09-30	-1510
2022-12-31	-1548
2023-03-31	-2159
2023-06-30	-1814
2023-09-30	-1927