Quarter	US dollars
2004-12-31	253
2005-03-31	248
2005-06-30	342
2005-09-30	343
2005-12-31	529
2006-03-31	758
2006-06-30	941
2006-09-30	900
2006-12-31	1450
2007-03-31	1797
2007-06-30	2456
2007-09-30	2272
2007-12-31	3757
2008-03-31	1984
2008-06-30	2139
2008-09-30	2071
2008-12-31	1899
2009-03-31	1859
2009-06-30	2253
2009-09-30	2567
2009-12-31	1954
2010-03-31	1902
2010-06-30	1976
2010-09-30	1575
2010-12-31	1260
2011-03-31	931
2011-06-30	881
2011-09-30	819
2011-12-31	538
2012-03-31	644
2012-06-30	798
2012-09-30	958
2012-12-31	797
2013-03-31	695
2013-06-30	566
2013-09-30	698
2013-12-31	767
2014-03-31	967
2014-06-30	927
2014-09-30	999
2014-12-31	857
2015-03-31	772
2015-06-30	840
2015-09-30	669
2015-12-31	559
2016-03-31	633
2016-06-30	545
2016-09-30	605
2016-12-31	555
2017-03-31	594
2017-06-30	709
2017-09-30	906
2017-12-31	1150
2018-03-31	1182
2018-06-30	1076
2018-09-30	1372
2018-12-31	1338
2019-03-31	1506
2019-06-30	1344
2019-09-30	1424
2019-12-31	1387
2020-03-31	1208
2020-06-30	1277
2020-09-30	1451
2020-12-31	1407
2021-03-31	1738
2021-06-30	1537
2021-09-30	1296
2021-12-31	1724
2022-03-31	1698
2022-06-30	1594
2022-09-30	1605
2022-12-31	1118
2023-03-31	668
2023-06-30	917
2023-09-30	999