Quarter	US dollars
2004-12-31	230
2005-03-31	208
2005-06-30	244
2005-09-30	253
2005-12-31	200
2006-03-31	402
2006-06-30	412
2006-09-30	177
2006-12-31	200
2007-03-31	167
2007-06-30	1104
2007-09-30	391
2007-12-31	460
2008-03-31	487
2008-06-30	324
2008-09-30	387
2008-12-31	374
2009-03-31	345
2009-06-30	400
2009-09-30	350
2009-12-31	433
2010-03-31	385
2010-06-30	486
2010-09-30	512
2010-12-31	1101
2011-03-31	383
2011-06-30	353
2011-09-30	338
2011-12-31	428
2012-03-31	516
2012-06-30	546
2012-09-30	543
2012-12-31	328
2013-03-31	440
2013-06-30	431
2013-09-30	361
2013-12-31	339
2014-03-31	494
2014-06-30	421
2014-09-30	349
2014-12-31	276
2015-03-31	282
2015-06-30	343
2015-09-30	311
2015-12-31	259
2016-03-31	263
2016-06-30	266
2016-09-30	369
2016-12-31	384
2017-03-31	346
2017-06-30	233
2017-09-30	188
2017-12-31	146
2018-03-31	156
2018-06-30	157
2018-09-30	91
2018-12-31	84
2019-03-31	311
2019-06-30	340
2019-09-30	339
2019-12-31	232
2020-03-31	149
2020-06-30	130
2020-09-30	127
2020-12-31	119
2021-03-31	95
2021-06-30	35
2021-09-30	101
2021-12-31	93
2022-03-31	53
2022-06-30	62
2022-09-30	48
2022-12-31	36
2023-03-31	50
2023-06-30	47
2023-09-30	40