Quarter	US dollars
2004-12-31	624
2005-03-31	662
2005-06-30	595
2005-09-30	529
2005-12-31	620
2006-03-31	517
2006-06-30	533
2006-09-30	428
2006-12-31	448
2007-03-31	377
2007-06-30	291
2007-09-30	340
2007-12-31	410
2008-03-31	507
2008-06-30	446
2008-09-30	453
2008-12-31	420
2009-03-31	474
2009-06-30	481
2009-09-30	384
2009-12-31	496
2010-03-31	513
2010-06-30	702
2010-09-30	622
2010-12-31	650
2011-03-31	710
2011-06-30	854
2011-09-30	718
2011-12-31	747
2012-03-31	687
2012-06-30	977
2012-09-30	759
2012-12-31	506
2013-03-31	1035
2013-06-30	1097
2013-09-30	1205
2013-12-31	1514
2014-03-31	1424
2014-06-30	1305
2014-09-30	1248
2014-12-31	1025
2015-03-31	1492
2015-06-30	1296
2015-09-30	1527
2015-12-31	1203
2016-03-31	1541
2016-06-30	1740
2016-09-30	1747
2016-12-31	2181
2017-03-31	1771
2017-06-30	2084
2017-09-30	2224
2017-12-31	2425
2018-03-31	1688
2018-06-30	1649
2018-09-30	1747
2018-12-31	1389
2019-03-31	1304
2019-06-30	1470
2019-09-30	1884
2019-12-31	2026
2020-03-31	1988
2020-06-30	1975
2020-09-30	2059
2020-12-31	2137
2021-03-31	2183
2021-06-30	2648
2021-09-30	2538
2021-12-31	3445
2022-03-31	3240
2022-06-30	3371
2022-09-30	3388
2022-12-31	2600
2023-03-31	3038
2023-06-30	3396
2023-09-30	3324