Quarter	US dollars
2004-12-31	84
2005-03-31	96
2005-06-30	99
2005-09-30	90
2005-12-31	70
2006-03-31	87
2006-06-30	202
2006-09-30	359
2006-12-31	452
2007-03-31	351
2007-06-30	578
2007-09-30	856
2007-12-31	639
2008-03-31	529
2008-06-30	615
2008-09-30	499
2008-12-31	423
2009-03-31	315
2009-06-30	301
2009-09-30	345
2009-12-31	357
2010-03-31	343
2010-06-30	389
2010-09-30	469
2010-12-31	373
2011-03-31	401
2011-06-30	72
2011-09-30	72
2011-12-31	70
2012-03-31	62
2012-06-30	66
2012-09-30	116
2012-12-31	160
2013-03-31	234
2013-06-30	247
2013-09-30	304
2013-12-31	220
2014-03-31	477
2014-06-30	284
2014-09-30	337
2014-12-31	312
2015-03-31	248
2015-06-30	214
2015-09-30	277
2015-12-31	222
2016-03-31	214
2016-06-30	330
2016-09-30	173
2016-12-31	138
2017-03-31	517
2017-06-30	722
2017-09-30	712
2017-12-31	1090
2018-03-31	651
2018-06-30	1017
2018-09-30	439
2018-12-31	323
2019-03-31	285
2019-06-30	285
2019-09-30	399
2019-12-31	483
2020-03-31	489
2020-06-30	428
2020-09-30	306
2020-12-31	300
2021-03-31	304
2021-06-30	358
2021-09-30	383
2021-12-31	325
2022-03-31	687
2022-06-30	1418
2022-09-30	698
2022-12-31	615
2023-03-31	544
2023-06-30	349
2023-09-30	458