Quarter	US dollars
2004-12-31	223
2005-03-31	291
2005-06-30	385
2005-09-30	416
2005-12-31	436
2006-03-31	189
2006-06-30	179
2006-09-30	243
2006-12-31	472
2007-03-31	402
2007-06-30	524
2007-09-30	520
2007-12-31	444
2008-03-31	590
2008-06-30	521
2008-09-30	494
2008-12-31	503
2009-03-31	530
2009-06-30	562
2009-09-30	491
2009-12-31	509
2010-03-31	487
2010-06-30	516
2010-09-30	515
2010-12-31	512
2011-03-31	478
2011-06-30	485
2011-09-30	480
2011-12-31	510
2012-03-31	545
2012-06-30	696
2012-09-30	575
2012-12-31	690
2013-03-31	504
2013-06-30	410
2013-09-30	421
2013-12-31	479
2014-03-31	464
2014-06-30	448
2014-09-30	444
2014-12-31	421
2015-03-31	325
2015-06-30	322
2015-09-30	315
2015-12-31	305
2016-03-31	285
2016-06-30	279
2016-09-30	270
2016-12-31	247
2017-03-31	218
2017-06-30	360
2017-09-30	388
2017-12-31	440
2018-03-31	466
2018-06-30	449
2018-09-30	383
2018-12-31	263
2019-03-31	271
2019-06-30	316
2019-09-30	504
2019-12-31	536
2020-03-31	554
2020-06-30	546
2020-09-30	624
2020-12-31	667
2021-03-31	712
2021-06-30	699
2021-09-30	693
2021-12-31	646
2022-03-31	707
2022-06-30	741
2022-09-30	741
2022-12-31	695
2023-03-31	601
2023-06-30	579
2023-09-30	616