Quarter	US dollars
2004-12-31	349
2005-03-31	573
2005-06-30	602
2005-09-30	371
2005-12-31	784
2006-03-31	1303
2006-06-30	1720
2006-09-30	2696
2006-12-31	2364
2007-03-31	2673
2007-06-30	3610
2007-09-30	3366
2007-12-31	3631
2008-03-31	3935
2008-06-30	3781
2008-09-30	3270
2008-12-31	2164
2009-03-31	1817
2009-06-30	1477
2009-09-30	1785
2009-12-31	1799
2010-03-31	2069
2010-06-30	3630
2010-09-30	3491
2010-12-31	4717
2011-03-31	4613
2011-06-30	4794
2011-09-30	4181
2011-12-31	4847
2012-03-31	5768
2012-06-30	5514
2012-09-30	5562
2012-12-31	5749
2013-03-31	4304
2013-06-30	4756
2013-09-30	4949
2013-12-31	5271
2014-03-31	5672
2014-06-30	4503
2014-09-30	4084
2014-12-31	3554
2015-03-31	2946
2015-06-30	2554
2015-09-30	3610
2015-12-31	1556
2016-03-31	1626
2016-06-30	1820
2016-09-30	1802
2016-12-31	1478
2017-03-31	1263
2017-06-30	1186
2017-09-30	1674
2017-12-31	1108
2018-03-31	1257
2018-06-30	1186
2018-09-30	1132
2018-12-31	729
2019-03-31	751
2019-06-30	1184
2019-09-30	663
2019-12-31	848
2020-03-31	749
2020-06-30	632
2020-09-30	633
2020-12-31	957
2021-03-31	857
2021-06-30	532
2021-09-30	484
2021-12-31	753
2022-03-31	270
2022-06-30	197
2022-09-30	79
2022-12-31	78
2023-03-31	103
2023-06-30	78
2023-09-30	69