Quarter	US dollars
2004-12-31	342
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	0
2011-03-31	0
2011-06-30	0
2011-09-30	0
2011-12-31	0
2012-03-31	0
2012-06-30	414
2012-09-30	415
2012-12-31	416
2013-03-31	399
2013-06-30	397
2013-09-30	381
2013-12-31	380
2014-03-31	362
2014-06-30	362
2014-09-30	352
2014-12-31	353
2015-03-31	334
2015-06-30	333
2015-09-30	304
2015-12-31	305
2016-03-31	286
2016-06-30	286
2016-09-30	268
2016-12-31	267
2017-03-31	250
2017-06-30	249
2017-09-30	416
2017-12-31	415
2018-03-31	414
2018-06-30	708
2018-09-30	1011
2018-12-31	1013
2019-03-31	521
2019-06-30	563
2019-09-30	541
2019-12-31	663
2020-03-31	713
2020-06-30	630
2020-09-30	597
2020-12-31	711
2021-03-31	695
2021-06-30	663
2021-09-30	243
2021-12-31	271
2022-03-31	154
2022-06-30	136
2022-09-30	80
2022-12-31	98
2023-03-31	52
2023-06-30	51
2023-09-30	42