Quarter	US dollars
2004-12-31	261
2005-03-31	229
2005-06-30	220
2005-09-30	187
2005-12-31	191
2006-03-31	196
2006-06-30	298
2006-09-30	247
2006-12-31	229
2007-03-31	210
2007-06-30	235
2007-09-30	212
2007-12-31	207
2008-03-31	217
2008-06-30	221
2008-09-30	200
2008-12-31	252
2009-03-31	249
2009-06-30	245
2009-09-30	206
2009-12-31	191
2010-03-31	187
2010-06-30	209
2010-09-30	206
2010-12-31	210
2011-03-31	175
2011-06-30	214
2011-09-30	223
2011-12-31	263
2012-03-31	302
2012-06-30	384
2012-09-30	283
2012-12-31	416
2013-03-31	782
2013-06-30	736
2013-09-30	727
2013-12-31	679
2014-03-31	709
2014-06-30	776
2014-09-30	741
2014-12-31	763
2015-03-31	815
2015-06-30	785
2015-09-30	1169
2015-12-31	714
2016-03-31	739
2016-06-30	663
2016-09-30	598
2016-12-31	89
2017-03-31	415
2017-06-30	313
2017-09-30	168
2017-12-31	26
2018-03-31	233
2018-06-30	625
2018-09-30	493
2018-12-31	544
2019-03-31	503
2019-06-30	457
2019-09-30	372
2019-12-31	420
2020-03-31	321
2020-06-30	140
2020-09-30	352
2020-12-31	586
2021-03-31	419
2021-06-30	405
2021-09-30	425
2021-12-31	605
2022-03-31	441
2022-06-30	385
2022-09-30	391
2022-12-31	401
2023-03-31	332
2023-06-30	364
2023-09-30	299