Quarter	US dollars
2004-12-31	225
2005-03-31	263
2005-06-30	253
2005-09-30	203
2005-12-31	175
2006-03-31	309
2006-06-30	375
2006-09-30	405
2006-12-31	429
2007-03-31	547
2007-06-30	704
2007-09-30	709
2007-12-31	830
2008-03-31	888
2008-06-30	989
2008-09-30	775
2008-12-31	631
2009-03-31	580
2009-06-30	550
2009-09-30	507
2009-12-31	522
2010-03-31	502
2010-06-30	480
2010-09-30	655
2010-12-31	650
2011-03-31	826
2011-06-30	846
2011-09-30	866
2011-12-31	524
2012-03-31	545
2012-06-30	613
2012-09-30	493
2012-12-31	530
2013-03-31	279
2013-06-30	252
2013-09-30	416
2013-12-31	420
2014-03-31	412
2014-06-30	371
2014-09-30	363
2014-12-31	345
2015-03-31	341
2015-06-30	127
2015-09-30	126
2015-12-31	123
2016-03-31	118
2016-06-30	115
2016-09-30	113
2016-12-31	106
2017-03-31	95
2017-06-30	290
2017-09-30	295
2017-12-31	293
2018-03-31	271
2018-06-30	232
2018-09-30	193
2018-12-31	272
2019-03-31	319
2019-06-30	419
2019-09-30	476
2019-12-31	505
2020-03-31	475
2020-06-30	534
2020-09-30	620
2020-12-31	595
2021-03-31	613
2021-06-30	540
2021-09-30	526
2021-12-31	505
2022-03-31	466
2022-06-30	527
2022-09-30	449
2022-12-31	407
2023-03-31	335
2023-06-30	275
2023-09-30	247