Quarter	US dollars
1999-09-30	119
1999-12-31	-10
2000-03-31	-156
2000-06-30	819
2000-09-30	2156
2000-12-31	1256
2001-03-31	2244
2001-06-30	1920
2001-09-30	2000
2001-12-31	1380
2002-03-31	1858
2002-06-30	1570
2002-09-30	1549
2002-12-31	892
2003-03-31	2435
2003-06-30	1765
2003-09-30	2470
2003-12-31	2042
2004-03-31	4092
2004-06-30	4226
2004-09-30	3898
2004-12-31	3918
2005-03-31	4029
2005-06-30	3688
2005-09-30	3551
2005-12-31	3569
2006-03-31	3974
2006-06-30	2558
2006-09-30	4140
2006-12-31	4074
2007-03-31	3360
2007-06-30	2731
2007-09-30	4655
2007-12-31	3060
2008-03-31	4324
2008-06-30	5569
2008-09-30	3783
2008-12-31	-2939
2009-03-31	-3651
2009-06-30	-1312
2009-09-30	-1388
2009-12-31	-169
2010-03-31	4520
2010-06-30	2219
2010-09-30	3446
2010-12-31	1303
2011-03-31	2768
2011-06-30	4017
2011-09-30	6655
2011-12-31	5543
2012-03-31	6565
2012-06-30	7971
2012-09-30	6027
2012-12-31	5146
2013-03-31	5780
2013-06-30	4792
2013-09-30	6296
2013-12-31	7734
2014-03-31	12483
2014-06-30	6720
2014-09-30	8489
2014-12-31	5645
2015-03-31	9817
2015-06-30	7869
2015-09-30	7454
2015-12-31	7003
2016-03-31	3699
2016-06-30	6528
2016-09-30	10094
2016-12-31	6727
2017-03-31	8400
2017-06-30	6524
2017-09-30	7813
2017-12-31	13872
2018-03-31	17032
2018-06-30	13761
2018-09-30	16163
2018-12-31	6758
2019-03-31	7140
2019-06-30	14708
2019-09-30	5407
2019-12-31	13103
2020-03-31	9201
2020-06-30	8928
2020-09-30	10914
2020-12-31	6299
2021-03-31	16810
2021-06-30	17753
2021-09-30	16752
2021-12-31	13698
2022-03-31	14440
2022-06-30	11717
2022-09-30	11767
2022-12-31	9637
2023-03-31	15452
2023-06-30	15235
2023-09-30	16292
2023-12-31	15403