Quarter	US dollars
2004-12-31	29
2005-03-31	40
2005-06-30	16
2005-09-30	32
2005-12-31	33
2006-03-31	33
2006-06-30	30
2006-09-30	19
2006-12-31	82
2007-03-31	139
2007-06-30	173
2007-09-30	304
2007-12-31	255
2008-03-31	276
2008-06-30	283
2008-09-30	249
2008-12-31	266
2009-03-31	229
2009-06-30	222
2009-09-30	304
2009-12-31	304
2010-03-31	290
2010-06-30	296
2010-09-30	298
2010-12-31	332
2011-03-31	364
2011-06-30	377
2011-09-30	418
2011-12-31	419
2012-03-31	483
2012-06-30	538
2012-09-30	552
2012-12-31	572
2013-03-31	540
2013-06-30	617
2013-09-30	657
2013-12-31	653
2014-03-31	552
2014-06-30	535
2014-09-30	595
2014-12-31	613
2015-03-31	644
2015-06-30	606
2015-09-30	603
2015-12-31	579
2016-03-31	611
2016-06-30	595
2016-09-30	553
2016-12-31	539
2017-03-31	512
2017-06-30	464
2017-09-30	464
2017-12-31	455
2018-03-31	491
2018-06-30	556
2018-09-30	554
2018-12-31	612
2019-03-31	575
2019-06-30	606
2019-09-30	630
2019-12-31	650
2020-03-31	675
2020-06-30	661
2020-09-30	691
2020-12-31	837
2021-03-31	861
2021-06-30	861
2021-09-30	862
2021-12-31	818
2022-03-31	799
2022-06-30	741
2022-09-30	731
2022-12-31	804
2023-03-31	771
2023-06-30	758
2023-09-30	704