Quarter	US dollars
2004-12-31	511
2005-03-31	463
2005-06-30	482
2005-09-30	593
2005-12-31	654
2006-03-31	598
2006-06-30	758
2006-09-30	887
2006-12-31	840
2007-03-31	847
2007-06-30	915
2007-09-30	1029
2007-12-31	1264
2008-03-31	1385
2008-06-30	1628
2008-09-30	1852
2008-12-31	1581
2009-03-31	1566
2009-06-30	1469
2009-09-30	1540
2009-12-31	1466
2010-03-31	1495
2010-06-30	1490
2010-09-30	1564
2010-12-31	1619
2011-03-31	1810
2011-06-30	2036
2011-09-30	1950
2011-12-31	1933
2012-03-31	1908
2012-06-30	2034
2012-09-30	2212
2012-12-31	2024
2013-03-31	2025
2013-06-30	2019
2013-09-30	2397
2013-12-31	2459
2014-03-31	2759
2014-06-30	3031
2014-09-30	3246
2014-12-31	3154
2015-03-31	3446
2015-06-30	3659
2015-09-30	3572
2015-12-31	3620
2016-03-31	3422
2016-06-30	3706
2016-09-30	4022
2016-12-31	4427
2017-03-31	4473
2017-06-30	4914
2017-09-30	5291
2017-12-31	5047
2018-03-31	5112
2018-06-30	5092
2018-09-30	5169
2018-12-31	5094
2019-03-31	5075
2019-06-30	5281
2019-09-30	4488
2019-12-31	4465
2020-03-31	4466
2020-06-30	4323
2020-09-30	4236
2020-12-31	4418
2021-03-31	4736
2021-06-30	5200
2021-09-30	5292
2021-12-31	5020
2022-03-31	5228
2022-06-30	5201
2022-09-30	5228
2022-12-31	4702
2023-03-31	4788
2023-06-30	4029
2023-09-30	3530