Quarter	US dollars
2004-12-31	83
2005-03-31	123
2005-06-30	186
2005-09-30	193
2005-12-31	1176
2006-03-31	1606
2006-06-30	2841
2006-09-30	3507
2006-12-31	3662
2007-03-31	1977
2007-06-30	2388
2007-09-30	3087
2007-12-31	3422
2008-03-31	1570
2008-06-30	1634
2008-09-30	2213
2008-12-31	1865
2009-03-31	1820
2009-06-30	1653
2009-09-30	1588
2009-12-31	1444
2010-03-31	883
2010-06-30	950
2010-09-30	747
2010-12-31	1571
2011-03-31	1638
2011-06-30	2005
2011-09-30	6694
2011-12-31	5863
2012-03-31	9160
2012-06-30	8634
2012-09-30	8667
2012-12-31	10120
2013-03-31	11826
2013-06-30	12890
2013-09-30	11634
2013-12-31	10234
2014-03-31	9188
2014-06-30	12067
2014-09-30	9330
2014-12-31	6736
2015-03-31	5303
2015-06-30	4637
2015-09-30	3829
2015-12-31	3552
2016-03-31	3692
2016-06-30	3337
2016-09-30	2998
2016-12-31	2707
2017-03-31	2566
2017-06-30	2246
2017-09-30	2010
2017-12-31	1974
2018-03-31	1493
2018-06-30	1326
2018-09-30	846
2018-12-31	1250
2019-03-31	1063
2019-06-30	1020
2019-09-30	870
2019-12-31	771
2020-03-31	629
2020-06-30	665
2020-09-30	679
2020-12-31	633
2021-03-31	636
2021-06-30	590
2021-09-30	642
2021-12-31	685
2022-03-31	762
2022-06-30	799
2022-09-30	888
2022-12-31	941
2023-03-31	1063
2023-06-30	970
2023-09-30	984