Quarter	US dollars
2004-12-31	676
2005-03-31	773
2005-06-30	943
2005-09-30	1072
2005-12-31	1021
2006-03-31	656
2006-06-30	501
2006-09-30	854
2006-12-31	1568
2007-03-31	2958
2007-06-30	2739
2007-09-30	2863
2007-12-31	2041
2008-03-31	2995
2008-06-30	2850
2008-09-30	4334
2008-12-31	3585
2009-03-31	3995
2009-06-30	4262
2009-09-30	4843
2009-12-31	6233
2010-03-31	7112
2010-06-30	7076
2010-09-30	7597
2010-12-31	7499
2011-03-31	8914
2011-06-30	9728
2011-09-30	8240
2011-12-31	9754
2012-03-31	10161
2012-06-30	11151
2012-09-30	9366
2012-12-31	10493
2013-03-31	11756
2013-06-30	11644
2013-09-30	12353
2013-12-31	12626
2014-03-31	13905
2014-06-30	12770
2014-09-30	11710
2014-12-31	11289
2015-03-31	12060
2015-06-30	11691
2015-09-30	10342
2015-12-31	9901
2016-03-31	7137
2016-06-30	6391
2016-09-30	5877
2016-12-31	3601
2017-03-31	4995
2017-06-30	513
2017-09-30	761
2017-12-31	676
2018-03-31	1998
2018-06-30	106
2018-09-30	232
2018-12-31	724
2019-03-31	1673
2019-06-30	1214
2019-09-30	-387
2019-12-31	184
2020-03-31	1813
2020-06-30	997
2020-09-30	138
2020-12-31	693
2021-03-31	1649
2021-06-30	1314
2021-09-30	1534
2021-12-31	1344
2022-03-31	8
2022-06-30	-58
2022-09-30	538
2022-12-31	557
2023-03-31	358
2023-06-30	352
2023-09-30	863