Quarter	US dollars
2004-12-31	0
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	100
2010-06-30	1
2010-09-30	9
2010-12-31	5
2011-03-31	8
2011-06-30	2
2011-09-30	5
2011-12-31	0
2012-03-31	0
2012-06-30	0
2012-09-30	0
2012-12-31	0
2013-03-31	0
2013-06-30	0
2013-09-30	0
2013-12-31	0
2014-03-31	12
2014-06-30	36
2014-09-30	37
2014-12-31	47
2015-03-31	27
2015-06-30	0
2015-09-30	29
2015-12-31	16
2016-03-31	17
2016-06-30	12
2016-09-30	13
2016-12-31	11
2017-03-31	11
2017-06-30	207
2017-09-30	203
2017-12-31	496
2018-03-31	328
2018-06-30	247
2018-09-30	258
2018-12-31	304
2019-03-31	412
2019-06-30	375
2019-09-30	360
2019-12-31	390
2020-03-31	298
2020-06-30	210
2020-09-30	266
2020-12-31	227
2021-03-31	353
2021-06-30	298
2021-09-30	264
2021-12-31	232
2022-03-31	304
2022-06-30	214
2022-09-30	230
2022-12-31	232
2023-03-31	192
2023-06-30	159
2023-09-30	289