Quarter	US dollars
2004-12-31	810
2005-03-31	669
2005-06-30	676
2005-09-30	766
2005-12-31	707
2006-03-31	911
2006-06-30	973
2006-09-30	992
2006-12-31	885
2007-03-31	1342
2007-06-30	1260
2007-09-30	1687
2007-12-31	1414
2008-03-31	2152
2008-06-30	1429
2008-09-30	1962
2008-12-31	1883
2009-03-31	1649
2009-06-30	1545
2009-09-30	2103
2009-12-31	2341
2010-03-31	2569
2010-06-30	3133
2010-09-30	4897
2010-12-31	4942
2011-03-31	4912
2011-06-30	5416
2011-09-30	6068
2011-12-31	7310
2012-03-31	6116
2012-06-30	6841
2012-09-30	6760
2012-12-31	3722
2013-03-31	3501
2013-06-30	4587
2013-09-30	4951
2013-12-31	4471
2014-03-31	4485
2014-06-30	5478
2014-09-30	5593
2014-12-31	6298
2015-03-31	5958
2015-06-30	4845
2015-09-30	4258
2015-12-31	4523
2016-03-31	3408
2016-06-30	3259
2016-09-30	2357
2016-12-31	1743
2017-03-31	1707
2017-06-30	2285
2017-09-30	2435
2017-12-31	2471
2018-03-31	2144
2018-06-30	1899
2018-09-30	1828
2018-12-31	2144
2019-03-31	2377
2019-06-30	1865
2019-09-30	1767
2019-12-31	1518
2020-03-31	1418
2020-06-30	1382
2020-09-30	1236
2020-12-31	1499
2021-03-31	3187
2021-06-30	4965
2021-09-30	6141
2021-12-31	8098
2022-03-31	8658
2022-06-30	1786
2022-09-30	7377
2022-12-31	8750
2023-03-31	8380
2023-06-30	7574
2023-09-30	2482