Quarter	US dollars
2004-12-31	280
2005-03-31	514
2005-06-30	416
2005-09-30	463
2005-12-31	453
2006-03-31	536
2006-06-30	553
2006-09-30	624
2006-12-31	597
2007-03-31	655
2007-06-30	817
2007-09-30	966
2007-12-31	958
2008-03-31	262
2008-06-30	199
2008-09-30	239
2008-12-31	210
2009-03-31	317
2009-06-30	268
2009-09-30	296
2009-12-31	451
2010-03-31	508
2010-06-30	396
2010-09-30	451
2010-12-31	600
2011-03-31	508
2011-06-30	506
2011-09-30	606
2011-12-31	581
2012-03-31	547
2012-06-30	372
2012-09-30	394
2012-12-31	445
2013-03-31	490
2013-06-30	532
2013-09-30	539
2013-12-31	440
2014-03-31	474
2014-06-30	374
2014-09-30	376
2014-12-31	298
2015-03-31	245
2015-06-30	164
2015-09-30	673
2015-12-31	565
2016-03-31	308
2016-06-30	328
2016-09-30	500
2016-12-31	492
2017-03-31	632
2017-06-30	123
2017-09-30	78
2017-12-31	88
2018-03-31	206
2018-06-30	115
2018-09-30	183
2018-12-31	107
2019-03-31	96
2019-06-30	103
2019-09-30	74
2019-12-31	70
2020-03-31	11
2020-06-30	27
2020-09-30	31
2020-12-31	35
2021-03-31	81
2021-06-30	101
2021-09-30	59
2021-12-31	135
2022-03-31	126
2022-06-30	93
2022-09-30	42
2022-12-31	13
2023-03-31	12
2023-06-30	10
2023-09-30	2