Quarter	US dollars
2004-12-31	8
2005-03-31	0
2005-06-30	4
2005-09-30	111
2005-12-31	15
2006-03-31	16
2006-06-30	17
2006-09-30	17
2006-12-31	18
2007-03-31	16
2007-06-30	20
2007-09-30	14
2007-12-31	20
2008-03-31	18
2008-06-30	16
2008-09-30	16
2008-12-31	10
2009-03-31	14
2009-06-30	31
2009-09-30	24
2009-12-31	26
2010-03-31	29
2010-06-30	37
2010-09-30	350
2010-12-31	326
2011-03-31	353
2011-06-30	334
2011-09-30	322
2011-12-31	227
2012-03-31	273
2012-06-30	226
2012-09-30	250
2012-12-31	285
2013-03-31	296
2013-06-30	344
2013-09-30	325
2013-12-31	337
2014-03-31	393
2014-06-30	347
2014-09-30	370
2014-12-31	315
2015-03-31	373
2015-06-30	341
2015-09-30	294
2015-12-31	298
2016-03-31	336
2016-06-30	353
2016-09-30	330
2016-12-31	328
2017-03-31	384
2017-06-30	340
2017-09-30	321
2017-12-31	334
2018-03-31	331
2018-06-30	376
2018-09-30	369
2018-12-31	397
2019-03-31	362
2019-06-30	335
2019-09-30	362
2019-12-31	343
2020-03-31	356
2020-06-30	423
2020-09-30	375
2020-12-31	382
2021-03-31	469
2021-06-30	489
2021-09-30	467
2021-12-31	539
2022-03-31	483
2022-06-30	440
2022-09-30	465
2022-12-31	398
2023-03-31	496
2023-06-30	570
2023-09-30	597