Quarter	US dollars
2004-12-31	326
2005-03-31	422
2005-06-30	350
2005-09-30	417
2005-12-31	410
2006-03-31	559
2006-06-30	546
2006-09-30	553
2006-12-31	568
2007-03-31	649
2007-06-30	704
2007-09-30	611
2007-12-31	643
2008-03-31	761
2008-06-30	659
2008-09-30	627
2008-12-31	506
2009-03-31	492
2009-06-30	542
2009-09-30	544
2009-12-31	1458
2010-03-31	1395
2010-06-30	1339
2010-09-30	2288
2010-12-31	3032
2011-03-31	1930
2011-06-30	2795
2011-09-30	2095
2011-12-31	2420
2012-03-31	2041
2012-06-30	2384
2012-09-30	2443
2012-12-31	2703
2013-03-31	2216
2013-06-30	2624
2013-09-30	2520
2013-12-31	2068
2014-03-31	2346
2014-06-30	2029
2014-09-30	2187
2014-12-31	1757
2015-03-31	1750
2015-06-30	1963
2015-09-30	1389
2015-12-31	1952
2016-03-31	1551
2016-06-30	1930
2016-09-30	2603
2016-12-31	1389
2017-03-31	2376
2017-06-30	2327
2017-09-30	1799
2017-12-31	1342
2018-03-31	2665
2018-06-30	2928
2018-09-30	2916
2018-12-31	1887
2019-03-31	1540
2019-06-30	1240
2019-09-30	1534
2019-12-31	1151
2020-03-31	1411
2020-06-30	2377
2020-09-30	1715
2020-12-31	1901
2021-03-31	1369
2021-06-30	1422
2021-09-30	1870
2021-12-31	2117
2022-03-31	1770
2022-06-30	1515
2022-09-30	2025
2022-12-31	1258
2023-03-31	1411
2023-06-30	1271
2023-09-30	2366