Quarter	US dollars
2004-12-31	365
2005-03-31	405
2005-06-30	425
2005-09-30	493
2005-12-31	527
2006-03-31	546
2006-06-30	531
2006-09-30	564
2006-12-31	810
2007-03-31	751
2007-06-30	809
2007-09-30	856
2007-12-31	978
2008-03-31	1069
2008-06-30	1134
2008-09-30	1444
2008-12-31	1187
2009-03-31	1218
2009-06-30	1199
2009-09-30	1295
2009-12-31	1264
2010-03-31	1479
2010-06-30	1780
2010-09-30	2009
2010-12-31	283
2011-03-31	495
2011-06-30	520
2011-09-30	527
2011-12-31	498
2012-03-31	446
2012-06-30	442
2012-09-30	383
2012-12-31	348
2013-03-31	499
2013-06-30	390
2013-09-30	262
2013-12-31	385
2014-03-31	447
2014-06-30	467
2014-09-30	459
2014-12-31	420
2015-03-31	451
2015-06-30	412
2015-09-30	395
2015-12-31	698
2016-03-31	674
2016-06-30	576
2016-09-30	587
2016-12-31	589
2017-03-31	455
2017-06-30	740
2017-09-30	695
2017-12-31	608
2018-03-31	550
2018-06-30	584
2018-09-30	464
2018-12-31	678
2019-03-31	525
2019-06-30	789
2019-09-30	476
2019-12-31	309
2020-03-31	397
2020-06-30	450
2020-09-30	536
2020-12-31	489
2021-03-31	430
2021-06-30	532
2021-09-30	233
2021-12-31	507
2022-03-31	507
2022-06-30	498
2022-09-30	548
2022-12-31	394
2023-03-31	439
2023-06-30	372
2023-09-30	330