Quarter	US dollars
2004-12-31	8
2005-03-31	-6
2005-06-30	-133
2005-09-30	-448
2005-12-31	-311
2006-03-31	-217
2006-06-30	-422
2006-09-30	-566
2006-12-31	-528
2007-03-31	-1573
2007-06-30	-357
2007-09-30	-538
2007-12-31	-325
2008-03-31	-890
2008-06-30	-1365
2008-09-30	-788
2008-12-31	-82
2009-03-31	-348
2009-06-30	-514
2009-09-30	-494
2009-12-31	-694
2010-03-31	-748
2010-06-30	-408
2010-09-30	-476
2010-12-31	-864
2011-03-31	-402
2011-06-30	-918
2011-09-30	-833
2011-12-31	-772
2012-03-31	-959
2012-06-30	-811
2012-09-30	-996
2012-12-31	-875
2013-03-31	-735
2013-06-30	-667
2013-09-30	-797
2013-12-31	-840
2014-03-31	-654
2014-06-30	34
2014-09-30	-29
2014-12-31	-19
2015-03-31	-162
2015-06-30	-120
2015-09-30	736
2015-12-31	372
2016-03-31	541
2016-06-30	293
2016-09-30	348
2016-12-31	149
2017-03-31	234
2017-06-30	753
2017-09-30	459
2017-12-31	230
2018-03-31	174
2018-06-30	154
2018-09-30	262
2018-12-31	106
2019-03-31	-452
2019-06-30	-1016
2019-09-30	493
2019-12-31	341
2020-03-31	375
2020-06-30	-82
2020-09-30	442
2020-12-31	-244
2021-03-31	466
2021-06-30	-46
2021-09-30	441
2021-12-31	608
2022-03-31	-87
2022-06-30	175
2022-09-30	429
2022-12-31	521
2023-03-31	894
2023-06-30	-30
2023-09-30	125