Quarter	US dollars
2004-12-31	159
2005-03-31	168
2005-06-30	176
2005-09-30	159
2005-12-31	151
2006-03-31	236
2006-06-30	181
2006-09-30	191
2006-12-31	278
2007-03-31	235
2007-06-30	205
2007-09-30	212
2007-12-31	213
2008-03-31	270
2008-06-30	269
2008-09-30	339
2008-12-31	220
2009-03-31	202
2009-06-30	219
2009-09-30	155
2009-12-31	392
2010-03-31	373
2010-06-30	537
2010-09-30	805
2010-12-31	629
2011-03-31	149
2011-06-30	210
2011-09-30	321
2011-12-31	241
2012-03-31	184
2012-06-30	249
2012-09-30	199
2012-12-31	254
2013-03-31	393
2013-06-30	296
2013-09-30	146
2013-12-31	235
2014-03-31	402
2014-06-30	178
2014-09-30	517
2014-12-31	414
2015-03-31	330
2015-06-30	326
2015-09-30	344
2015-12-31	458
2016-03-31	367
2016-06-30	419
2016-09-30	353
2016-12-31	239
2017-03-31	283
2017-06-30	170
2017-09-30	262
2017-12-31	511
2018-03-31	512
2018-06-30	446
2018-09-30	446
2018-12-31	407
2019-03-31	466
2019-06-30	540
2019-09-30	636
2019-12-31	542
2020-03-31	238
2020-06-30	127
2020-09-30	292
2020-12-31	94
2021-03-31	99
2021-06-30	294
2021-09-30	267
2021-12-31	195
2022-03-31	384
2022-06-30	263
2022-09-30	211
2022-12-31	223
2023-03-31	364
2023-06-30	386
2023-09-30	541