Quarter	US dollars
2004-12-31	248
2005-03-31	308
2005-06-30	217
2005-09-30	184
2005-12-31	191
2006-03-31	182
2006-06-30	222
2006-09-30	209
2006-12-31	186
2007-03-31	275
2007-06-30	181
2007-09-30	275
2007-12-31	281
2008-03-31	370
2008-06-30	376
2008-09-30	353
2008-12-31	354
2009-03-31	195
2009-06-30	153
2009-09-30	281
2009-12-31	199
2010-03-31	290
2010-06-30	283
2010-09-30	232
2010-12-31	720
2011-03-31	712
2011-06-30	706
2011-09-30	671
2011-12-31	555
2012-03-31	503
2012-06-30	508
2012-09-30	570
2012-12-31	770
2013-03-31	515
2013-06-30	760
2013-09-30	695
2013-12-31	560
2014-03-31	408
2014-06-30	342
2014-09-30	381
2014-12-31	677
2015-03-31	699
2015-06-30	653
2015-09-30	566
2015-12-31	559
2016-03-31	656
2016-06-30	536
2016-09-30	517
2016-12-31	438
2017-03-31	533
2017-06-30	511
2017-09-30	381
2017-12-31	482
2018-03-31	660
2018-06-30	709
2018-09-30	606
2018-12-31	665
2019-03-31	448
2019-06-30	443
2019-09-30	567
2019-12-31	450
2020-03-31	417
2020-06-30	231
2020-09-30	67
2020-12-31	59
2021-03-31	28
2021-06-30	26
2021-09-30	23
2021-12-31	40
2022-03-31	50
2022-06-30	116
2022-09-30	219
2022-12-31	293
2023-03-31	177
2023-06-30	86
2023-09-30	192