Quarter	US dollars
2004-12-31	227
2005-03-31	282
2005-06-30	206
2005-09-30	241
2005-12-31	275
2006-03-31	264
2006-06-30	285
2006-09-30	262
2006-12-31	299
2007-03-31	259
2007-06-30	389
2007-09-30	485
2007-12-31	456
2008-03-31	588
2008-06-30	509
2008-09-30	283
2008-12-31	487
2009-03-31	504
2009-06-30	527
2009-09-30	469
2009-12-31	383
2010-03-31	428
2010-06-30	376
2010-09-30	384
2010-12-31	373
2011-03-31	414
2011-06-30	583
2011-09-30	349
2011-12-31	289
2012-03-31	305
2012-06-30	273
2012-09-30	463
2012-12-31	365
2013-03-31	288
2013-06-30	287
2013-09-30	313
2013-12-31	324
2014-03-31	302
2014-06-30	304
2014-09-30	293
2014-12-31	275
2015-03-31	190
2015-06-30	126
2015-09-30	136
2015-12-31	166
2016-03-31	183
2016-06-30	101
2016-09-30	100
2016-12-31	98
2017-03-31	83
2017-06-30	295
2017-09-30	380
2017-12-31	305
2018-03-31	401
2018-06-30	371
2018-09-30	541
2018-12-31	614
2019-03-31	602
2019-06-30	549
2019-09-30	480
2019-12-31	563
2020-03-31	470
2020-06-30	478
2020-09-30	504
2020-12-31	523
2021-03-31	578
2021-06-30	578
2021-09-30	454
2021-12-31	600
2022-03-31	346
2022-06-30	312
2022-09-30	295
2022-12-31	390
2023-03-31	309
2023-06-30	293
2023-09-30	310