Quarter	US dollars
2004-12-31	705
2005-03-31	331
2005-06-30	439
2005-09-30	481
2005-12-31	462
2006-03-31	307
2006-06-30	429
2006-09-30	267
2006-12-31	296
2007-03-31	453
2007-06-30	459
2007-09-30	434
2007-12-31	691
2008-03-31	757
2008-06-30	740
2008-09-30	777
2008-12-31	903
2009-03-31	704
2009-06-30	562
2009-09-30	616
2009-12-31	528
2010-03-31	406
2010-06-30	712
2010-09-30	844
2010-12-31	786
2011-03-31	1082
2011-06-30	975
2011-09-30	628
2011-12-31	637
2012-03-31	690
2012-06-30	824
2012-09-30	1313
2012-12-31	1027
2013-03-31	1263
2013-06-30	1497
2013-09-30	989
2013-12-31	754
2014-03-31	950
2014-06-30	1137
2014-09-30	734
2014-12-31	549
2015-03-31	616
2015-06-30	519
2015-09-30	503
2015-12-31	406
2016-03-31	462
2016-06-30	586
2016-09-30	550
2016-12-31	682
2017-03-31	673
2017-06-30	335
2017-09-30	453
2017-12-31	755
2018-03-31	594
2018-06-30	558
2018-09-30	493
2018-12-31	558
2019-03-31	404
2019-06-30	475
2019-09-30	572
2019-12-31	473
2020-03-31	469
2020-06-30	445
2020-09-30	379
2020-12-31	422
2021-03-31	435
2021-06-30	310
2021-09-30	468
2021-12-31	601
2022-03-31	399
2022-06-30	214
2022-09-30	220
2022-12-31	165
2023-03-31	291
2023-06-30	352
2023-09-30	286