Quarter	US dollars
2004-12-31	1976
2005-03-31	1505
2005-06-30	1746
2005-09-30	2013
2005-12-31	1590
2006-03-31	2017
2006-06-30	1531
2006-09-30	1988
2006-12-31	2642
2007-03-31	2418
2007-06-30	2807
2007-09-30	3368
2007-12-31	3084
2008-03-31	3017
2008-06-30	3113
2008-09-30	2342
2008-12-31	1718
2009-03-31	1558
2009-06-30	1385
2009-09-30	1150
2009-12-31	1245
2010-03-31	984
2010-06-30	1128
2010-09-30	1149
2010-12-31	1163
2011-03-31	984
2011-06-30	1012
2011-09-30	1229
2011-12-31	812
2012-03-31	617
2012-06-30	794
2012-09-30	547
2012-12-31	572
2013-03-31	548
2013-06-30	980
2013-09-30	533
2013-12-31	616
2014-03-31	607
2014-06-30	643
2014-09-30	473
2014-12-31	563
2015-03-31	637
2015-06-30	774
2015-09-30	1016
2015-12-31	788
2016-03-31	634
2016-06-30	667
2016-09-30	494
2016-12-31	502
2017-03-31	348
2017-06-30	236
2017-09-30	232
2017-12-31	388
2018-03-31	299
2018-06-30	457
2018-09-30	408
2018-12-31	267
2019-03-31	292
2019-06-30	368
2019-09-30	2809
2019-12-31	2893
2020-03-31	2758
2020-06-30	2835
2020-09-30	2050
2020-12-31	2180
2021-03-31	2049
2021-06-30	2112
2021-09-30	1241
2021-12-31	1193
2022-03-31	777
2022-06-30	769
2022-09-30	820
2022-12-31	845
2023-03-31	644
2023-06-30	678
2023-09-30	783