Quarter	US dollars
2004-12-31	459
2005-03-31	567
2005-06-30	427
2005-09-30	476
2005-12-31	463
2006-03-31	482
2006-06-30	455
2006-09-30	476
2006-12-31	507
2007-03-31	673
2007-06-30	654
2007-09-30	672
2007-12-31	605
2008-03-31	596
2008-06-30	599
2008-09-30	526
2008-12-31	607
2009-03-31	760
2009-06-30	713
2009-09-30	729
2009-12-31	660
2010-03-31	595
2010-06-30	1110
2010-09-30	1689
2010-12-31	4005
2011-03-31	3197
2011-06-30	3892
2011-09-30	6648
2011-12-31	5524
2012-03-31	8257
2012-06-30	8014
2012-09-30	7831
2012-12-31	9788
2013-03-31	19017
2013-06-30	17466
2013-09-30	17062
2013-12-31	15140
2014-03-31	13737
2014-06-30	13924
2014-09-30	11202
2014-12-31	10287
2015-03-31	8387
2015-06-30	8022
2015-09-30	7430
2015-12-31	7196
2016-03-31	7922
2016-06-30	6729
2016-09-30	6701
2016-12-31	5765
2017-03-31	5691
2017-06-30	3767
2017-09-30	3803
2017-12-31	4284
2018-03-31	2550
2018-06-30	2296
2018-09-30	6960
2018-12-31	2125
2019-03-31	2137
2019-06-30	2611
2019-09-30	2492
2019-12-31	2411
2020-03-31	2063
2020-06-30	1970
2020-09-30	1870
2020-12-31	2161
2021-03-31	2340
2021-06-30	2240
2021-09-30	2286
2021-12-31	2181
2022-03-31	2365
2022-06-30	2457
2022-09-30	2689
2022-12-31	2885
2023-03-31	3573
2023-06-30	2683
2023-09-30	2438