Quarter	US dollars
2004-12-31	92
2005-03-31	72
2005-06-30	95
2005-09-30	67
2005-12-31	88
2006-03-31	111
2006-06-30	68
2006-09-30	78
2006-12-31	82
2007-03-31	78
2007-06-30	72
2007-09-30	67
2007-12-31	76
2008-03-31	751
2008-06-30	661
2008-09-30	570
2008-12-31	456
2009-03-31	525
2009-06-30	535
2009-09-30	499
2009-12-31	567
2010-03-31	567
2010-06-30	479
2010-09-30	443
2010-12-31	518
2011-03-31	388
2011-06-30	458
2011-09-30	475
2011-12-31	468
2012-03-31	369
2012-06-30	365
2012-09-30	412
2012-12-31	386
2013-03-31	384
2013-06-30	359
2013-09-30	599
2013-12-31	628
2014-03-31	657
2014-06-30	653
2014-09-30	567
2014-12-31	512
2015-03-31	445
2015-06-30	506
2015-09-30	506
2015-12-31	501
2016-03-31	512
2016-06-30	537
2016-09-30	494
2016-12-31	450
2017-03-31	289
2017-06-30	292
2017-09-30	290
2017-12-31	403
2018-03-31	327
2018-06-30	407
2018-09-30	325
2018-12-31	342
2019-03-31	334
2019-06-30	347
2019-09-30	397
2019-12-31	367
2020-03-31	412
2020-06-30	378
2020-09-30	489
2020-12-31	419
2021-03-31	408
2021-06-30	417
2021-09-30	440
2021-12-31	437
2022-03-31	297
2022-06-30	320
2022-09-30	379
2022-12-31	339
2023-03-31	376
2023-06-30	350
2023-09-30	385