Quarter	US dollars
2004-12-31	307
2005-03-31	216
2005-06-30	670
2005-09-30	57
2005-12-31	2
2006-03-31	144
2006-06-30	281
2006-09-30	426
2006-12-31	147
2007-03-31	192
2007-06-30	2
2007-09-30	371
2007-12-31	482
2008-03-31	610
2008-06-30	348
2008-09-30	217
2008-12-31	415
2009-03-31	298
2009-06-30	318
2009-09-30	270
2009-12-31	381
2010-03-31	793
2010-06-30	471
2010-09-30	711
2010-12-31	449
2011-03-31	1348
2011-06-30	486
2011-09-30	595
2011-12-31	691
2012-03-31	1237
2012-06-30	867
2012-09-30	1663
2012-12-31	1373
2013-03-31	1723
2013-06-30	1647
2013-09-30	965
2013-12-31	1278
2014-03-31	1841
2014-06-30	1400
2014-09-30	1279
2014-12-31	1150
2015-03-31	1133
2015-06-30	1350
2015-09-30	697
2015-12-31	799
2016-03-31	1927
2016-06-30	2588
2016-09-30	2592
2016-12-31	1603
2017-03-31	1133
2017-06-30	1747
2017-09-30	867
2017-12-31	535
2018-03-31	457
2018-06-30	593
2018-09-30	857
2018-12-31	420
2019-03-31	624
2019-06-30	116
2019-09-30	206
2019-12-31	309
2020-03-31	718
2020-06-30	1337
2020-09-30	321
2020-12-31	48
2021-03-31	1163
2021-06-30	1596
2021-09-30	1783
2021-12-31	526
2022-03-31	671
2022-06-30	290
2022-09-30	921
2022-12-31	865
2023-03-31	841
2023-06-30	328
2023-09-30	325