Quarter	US dollars
2004-12-31	33
2005-03-31	47
2005-06-30	20
2005-09-30	37
2005-12-31	41
2006-03-31	42
2006-06-30	48
2006-09-30	41
2006-12-31	94
2007-03-31	149
2007-06-30	187
2007-09-30	338
2007-12-31	307
2008-03-31	328
2008-06-30	346
2008-09-30	301
2008-12-31	277
2009-03-31	257
2009-06-30	249
2009-09-30	331
2009-12-31	326
2010-03-31	322
2010-06-30	322
2010-09-30	323
2010-12-31	357
2011-03-31	390
2011-06-30	382
2011-09-30	438
2011-12-31	433
2012-03-31	502
2012-06-30	551
2012-09-30	554
2012-12-31	579
2013-03-31	553
2013-06-30	631
2013-09-30	688
2013-12-31	664
2014-03-31	592
2014-06-30	578
2014-09-30	653
2014-12-31	681
2015-03-31	713
2015-06-30	675
2015-09-30	666
2015-12-31	642
2016-03-31	669
2016-06-30	650
2016-09-30	604
2016-12-31	578
2017-03-31	543
2017-06-30	509
2017-09-30	510
2017-12-31	516
2018-03-31	550
2018-06-30	615
2018-09-30	616
2018-12-31	678
2019-03-31	616
2019-06-30	659
2019-09-30	667
2019-12-31	682
2020-03-31	735
2020-06-30	718
2020-09-30	737
2020-12-31	905
2021-03-31	908
2021-06-30	909
2021-09-30	918
2021-12-31	864
2022-03-31	852
2022-06-30	790
2022-09-30	768
2022-12-31	836
2023-03-31	797
2023-06-30	784
2023-09-30	728