Quarter	US dollars
2004-12-31	81
2005-03-31	98
2005-06-30	115
2005-09-30	81
2005-12-31	96
2006-03-31	97
2006-06-30	906
2006-09-30	800
2006-12-31	1186
2007-03-31	1126
2007-06-30	1234
2007-09-30	1422
2007-12-31	1079
2008-03-31	996
2008-06-30	1081
2008-09-30	1032
2008-12-31	899
2009-03-31	320
2009-06-30	280
2009-09-30	165
2009-12-31	192
2010-03-31	212
2010-06-30	214
2010-09-30	498
2010-12-31	473
2011-03-31	497
2011-06-30	515
2011-09-30	432
2011-12-31	450
2012-03-31	539
2012-06-30	395
2012-09-30	593
2012-12-31	517
2013-03-31	499
2013-06-30	504
2013-09-30	497
2013-12-31	497
2014-03-31	485
2014-06-30	532
2014-09-30	611
2014-12-31	599
2015-03-31	518
2015-06-30	318
2015-09-30	327
2015-12-31	379
2016-03-31	385
2016-06-30	397
2016-09-30	217
2016-12-31	247
2017-03-31	475
2017-06-30	417
2017-09-30	373
2017-12-31	528
2018-03-31	557
2018-06-30	514
2018-09-30	622
2018-12-31	555
2019-03-31	581
2019-06-30	568
2019-09-30	562
2019-12-31	577
2020-03-31	449
2020-06-30	499
2020-09-30	401
2020-12-31	495
2021-03-31	397
2021-06-30	355
2021-09-30	268
2021-12-31	337
2022-03-31	325
2022-06-30	451
2022-09-30	358
2022-12-31	312
2023-03-31	386
2023-06-30	230
2023-09-30	318