Quarter	US dollars
2004-12-31	71
2005-03-31	119
2005-06-30	115
2005-09-30	73
2005-12-31	12
2006-12-31	380
2007-03-31	535
2007-06-30	181
2007-09-30	446
2007-12-31	287
2008-03-31	491
2008-06-30	308
2008-09-30	189
2008-12-31	194
2009-03-31	29
2009-06-30	30
2009-09-30	21
2009-12-31	15
2010-03-31	12
2010-06-30	187
2010-09-30	187
2010-12-31	189
2011-03-31	186
2011-06-30	186
2011-09-30	185
2011-12-31	199
2012-03-31	206
2012-06-30	216
2012-09-30	24
2012-12-31	18
2013-03-31	15
2013-06-30	15
2013-12-31	10
2014-03-31	15
2014-06-30	22
2014-09-30	19
2014-12-31	34
2015-03-31	4
2015-06-30	3
2015-09-30	700
2015-12-31	1
2016-03-31	3
2016-06-30	1
2016-09-30	3
2016-12-31	5
2017-03-31	8
2017-06-30	8
2017-09-30	8
2017-12-31	8
2018-03-31	3
2018-06-30	1
2018-09-30	1
2018-12-31	4
2019-03-31	9
2019-06-30	3
2019-09-30	6
2019-12-31	7
2020-03-31	7
2020-06-30	17
2020-09-30	8
2020-12-31	11
2021-03-31	39
2021-06-30	19
2021-09-30	112
2021-12-31	27
2022-03-31	22
2022-06-30	13
2022-09-30	13
2022-12-31	20
2023-03-31	23
2023-06-30	20
2023-09-30	22