Quarter	US dollars
2004-12-31	923
2005-03-31	786
2005-06-30	739
2005-09-30	775
2005-12-31	767
2006-03-31	1160
2006-06-30	1696
2006-09-30	1795
2006-12-31	2086
2007-03-31	2038
2007-06-30	2540
2007-09-30	2911
2007-12-31	3412
2008-03-31	7626
2008-06-30	6774
2008-09-30	6580
2008-12-31	3912
2009-03-31	3270
2009-06-30	3096
2009-09-30	2356
2009-12-31	22257
2010-03-31	21279
2010-06-30	17802
2010-09-30	20693
2010-12-31	18795
2011-03-31	19383
2011-06-30	18643
2011-09-30	15520
2011-12-31	14727
2012-03-31	14624
2012-06-30	13490
2012-09-30	12834
2012-12-31	1061
2013-03-31	827
2013-06-30	702
2013-09-30	768
2013-12-31	707
2014-03-31	1062
2014-06-30	1258
2014-09-30	1175
2014-12-31	1202
2015-03-31	1642
2015-06-30	1708
2015-09-30	1748
2015-12-31	1580
2016-03-31	1451
2016-06-30	1817
2016-09-30	2007
2016-12-31	1506
2017-03-31	1417
2017-06-30	1578
2017-09-30	1497
2017-12-31	1928
2018-03-31	1607
2018-06-30	1522
2018-09-30	1810
2018-12-31	4044
2019-03-31	3471
2019-06-30	3877
2019-09-30	3522
2019-12-31	2906
2020-03-31	2592
2020-06-30	2569
2020-09-30	2492
2020-12-31	2930
2021-03-31	2475
2021-06-30	2648
2021-09-30	2822
2021-12-31	2849
2022-03-31	2309
2022-06-30	2253
2022-09-30	2115
2022-12-31	2479
2023-03-31	3211
2023-06-30	3519
2023-09-30	3440