Quarter	US dollars
2004-12-31	246
2005-03-31	183
2005-06-30	172
2005-09-30	161
2005-12-31	137
2006-03-31	170
2006-06-30	170
2006-09-30	192
2006-12-31	184
2007-03-31	218
2007-06-30	227
2007-09-30	212
2007-12-31	303
2008-03-31	244
2008-06-30	297
2008-09-30	274
2008-12-31	231
2009-03-31	300
2009-06-30	231
2009-09-30	230
2009-12-31	218
2010-03-31	193
2010-06-30	241
2010-09-30	243
2010-12-31	205
2011-03-31	228
2011-06-30	250
2011-09-30	335
2011-12-31	380
2012-03-31	350
2012-06-30	562
2012-09-30	543
2012-12-31	470
2013-03-31	566
2013-06-30	610
2013-09-30	460
2013-12-31	795
2014-03-31	487
2014-06-30	667
2014-09-30	494
2014-12-31	540
2015-03-31	416
2015-06-30	431
2015-09-30	374
2015-12-31	531
2016-03-31	485
2016-06-30	779
2016-09-30	508
2016-12-31	543
2017-03-31	498
2017-06-30	605
2017-09-30	680
2017-12-31	809
2018-03-31	824
2018-06-30	823
2018-09-30	786
2018-12-31	900
2019-03-31	708
2019-06-30	666
2019-09-30	599
2019-12-31	687
2020-03-31	561
2020-06-30	683
2020-09-30	629
2020-12-31	455
2021-03-31	556
2021-06-30	995
2021-09-30	907
2021-12-31	644
2022-03-31	507
2022-06-30	835
2022-09-30	759
2022-12-31	621
2023-03-31	571
2023-06-30	750
2023-09-30	969