Quarter	US dollars
2004-12-31	797
2005-03-31	985
2005-06-30	1235
2005-09-30	1641
2005-12-31	936
2006-03-31	1223
2006-06-30	1640
2006-09-30	2565
2006-12-31	2380
2007-03-31	4083
2007-06-30	5104
2007-09-30	5701
2007-12-31	5977
2008-03-31	13131
2008-06-30	10959
2008-09-30	10081
2008-12-31	3687
2009-03-31	6172
2009-06-30	5767
2009-09-30	4529
2009-12-31	4898
2010-03-31	3984
2010-06-30	3377
2010-09-30	3394
2010-12-31	2095
2011-03-31	2454
2011-06-30	2962
2011-09-30	2650
2011-12-31	1991
2012-03-31	1406
2012-06-30	1994
2012-09-30	2468
2012-12-31	1670
2013-03-31	1746
2013-06-30	3221
2013-09-30	2387
2013-12-31	2164
2014-03-31	1511
2014-06-30	1530
2014-09-30	1892
2014-12-31	2802
2015-03-31	1583
2015-06-30	2455
2015-09-30	2502
2015-12-31	1552
2016-03-31	1530
2016-06-30	1597
2016-09-30	2033
2016-12-31	1690
2017-03-31	1731
2017-06-30	3214
2017-09-30	2035
2017-12-31	2293
2018-03-31	1945
2018-06-30	1669
2018-09-30	1604
2018-12-31	1743
2019-03-31	1769
2019-06-30	2085
2019-09-30	2548
2019-12-31	2304
2020-03-31	2933
2020-06-30	2383
2020-09-30	2396
2020-12-31	2350
2021-03-31	3914
2021-06-30	3481
2021-09-30	3866
2021-12-31	2837
2022-03-31	2921
2022-06-30	2484
2022-09-30	3088
2022-12-31	3346
2023-03-31	3204
2023-06-30	3153
2023-09-30	3492