Quarter	US dollars
2004-12-31	424
2005-03-31	395
2005-06-30	529
2005-09-30	653
2005-12-31	668
2006-03-31	924
2006-06-30	891
2006-09-30	792
2006-12-31	1296
2007-03-31	2846
2007-06-30	2857
2007-09-30	2626
2007-12-31	2696
2008-03-31	1556
2008-06-30	428
2008-09-30	950
2008-12-31	815
2009-03-31	1062
2009-06-30	1199
2009-09-30	1231
2009-12-31	1200
2010-03-31	760
2010-06-30	2858
2010-09-30	3622
2010-12-31	5145
2011-03-31	4829
2011-06-30	5020
2011-09-30	9341
2011-12-31	8953
2012-03-31	14151
2012-06-30	8485
2012-09-30	11652
2012-12-31	13583
2013-03-31	13037
2013-06-30	12140
2013-09-30	12032
2013-12-31	11112
2014-03-31	10402
2014-06-30	10525
2014-09-30	8456
2014-12-31	6577
2015-03-31	5468
2015-06-30	5088
2015-09-30	4497
2015-12-31	4063
2016-03-31	3753
2016-06-30	3333
2016-09-30	3310
2016-12-31	2993
2017-03-31	3193
2017-06-30	3111
2017-09-30	2777
2017-12-31	2699
2018-03-31	2151
2018-06-30	1739
2018-09-30	5188
2018-12-31	1360
2019-03-31	1812
2019-06-30	1928
2019-09-30	1784
2019-12-31	1733
2020-03-31	1673
2020-06-30	1544
2020-09-30	1495
2020-12-31	1639
2021-03-31	1363
2021-06-30	1686
2021-09-30	1735
2021-12-31	1850
2022-03-31	1543
2022-06-30	1510
2022-09-30	1704
2022-12-31	1595
2023-03-31	2160
2023-06-30	2885
2023-09-30	2996