Quarter	US dollars
2004-12-31	685
2005-03-31	858
2005-06-30	927
2005-09-30	520
2005-12-31	1532
2006-03-31	1617
2006-06-30	1836
2006-09-30	2302
2006-12-31	2505
2007-03-31	3503
2007-06-30	3714
2007-09-30	4030
2007-12-31	3707
2008-03-31	4235
2008-06-30	5843
2008-09-30	6189
2008-12-31	4255
2009-03-31	5290
2009-06-30	5038
2009-09-30	5031
2009-12-31	4927
2010-03-31	5424
2010-06-30	5241
2010-09-30	5029
2010-12-31	5568
2011-03-31	4940
2011-06-30	6299
2011-09-30	4304
2011-12-31	4771
2012-03-31	3561
2012-06-30	4811
2012-09-30	5085
2012-12-31	8031
2013-03-31	6394
2013-06-30	5598
2013-09-30	7665
2013-12-31	4939
2014-03-31	3793
2014-06-30	3168
2014-09-30	3092
2014-12-31	3086
2015-03-31	2926
2015-06-30	3556
2015-09-30	42
2015-12-31	43
2016-03-31	62
2016-06-30	51
2016-09-30	42
2016-12-31	49
2017-03-31	40
2017-06-30	30
2017-09-30	47
2017-12-31	0
2018-03-31	3
2018-06-30	7
2018-09-30	7
2018-12-31	14
2019-03-31	23
2019-06-30	20
2019-09-30	20
2019-12-31	25
2020-03-31	17
2020-06-30	27
2020-09-30	28
2020-12-31	16
2021-03-31	19
2021-06-30	15
2021-09-30	39
2021-12-31	36
2022-03-31	34
2022-06-30	32
2022-09-30	30
2022-12-31	32
2023-03-31	31
2023-06-30	12
2023-09-30	12