Quarter	US dollars
2004-12-31	626
2005-03-31	637
2005-06-30	599
2005-09-30	578
2005-12-31	362
2006-03-31	328
2006-06-30	385
2006-09-30	478
2006-12-31	515
2007-03-31	496
2007-06-30	345
2007-09-30	346
2007-12-31	340
2008-03-31	401
2008-06-30	420
2008-09-30	424
2008-12-31	426
2009-03-31	400
2009-06-30	425
2009-09-30	470
2009-12-31	468
2010-03-31	475
2010-06-30	579
2010-09-30	345
2010-12-31	293
2011-03-31	600
2011-06-30	347
2011-09-30	308
2011-12-31	334
2012-03-31	355
2012-06-30	320
2012-09-30	300
2012-12-31	521
2013-03-31	428
2013-06-30	349
2013-09-30	334
2013-12-31	463
2014-03-31	387
2014-06-30	436
2014-09-30	451
2014-12-31	464
2015-03-31	493
2015-06-30	266
2015-09-30	301
2015-12-31	267
2016-03-31	273
2016-06-30	242
2016-09-30	230
2016-12-31	130
2017-03-31	184
2017-06-30	369
2017-09-30	692
2017-12-31	539
2018-03-31	596
2018-06-30	566
2018-09-30	575
2018-12-31	609
2019-03-31	606
2019-06-30	724
2019-09-30	626
2019-12-31	688
2020-03-31	613
2020-06-30	650
2020-09-30	706
2020-12-31	647
2021-03-31	690
2021-06-30	629
2021-09-30	620
2021-12-31	623
2022-03-31	521
2022-06-30	491
2022-09-30	485
2022-12-31	537
2023-03-31	610
2023-06-30	644
2023-09-30	576