Quarter	US dollars
2004-12-31	21
2005-03-31	19
2005-06-30	14
2005-09-30	21
2005-12-31	12
2006-03-31	23
2006-06-30	4
2006-09-30	17
2006-12-31	27
2007-03-31	649
2007-06-30	614
2007-09-30	648
2007-12-31	699
2008-03-31	765
2008-06-30	712
2008-09-30	604
2008-12-31	713
2009-03-31	600
2009-06-30	484
2009-09-30	630
2009-12-31	665
2010-03-31	686
2010-06-30	2068
2010-09-30	1453
2010-12-31	1083
2011-03-31	1095
2011-06-30	769
2011-09-30	1496
2011-12-31	955
2012-03-31	2567
2012-06-30	2679
2012-09-30	2824
2012-12-31	2513
2013-03-31	2520
2013-06-30	2170
2013-09-30	1755
2013-12-31	1859
2014-03-31	2121
2014-06-30	1949
2014-09-30	1684
2014-12-31	2115
2015-03-31	2978
2015-06-30	2235
2015-09-30	1725
2015-12-31	1691
2016-03-31	1981
2016-06-30	1789
2016-09-30	1495
2016-12-31	1400
2017-03-31	2319
2017-06-30	2365
2017-09-30	2093
2017-12-31	2543
2018-03-31	2683
2018-06-30	2803
2018-09-30	2568
2018-12-31	1345
2019-03-31	1586
2019-06-30	196
2019-09-30	219
2019-12-31	433
2020-03-31	444
2020-06-30	544
2020-09-30	59
2020-12-31	63
2021-03-31	58
2021-06-30	87
2021-09-30	84
2021-12-31	111
2022-03-31	97
2022-06-30	97
2022-09-30	90
2022-12-31	-31
2023-03-31	36
2023-06-30	64
2023-09-30	63