Quarter	US dollars
2004-12-31	190
2005-03-31	189
2005-06-30	238
2005-09-30	248
2005-12-31	195
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	483
2008-06-30	324
2008-09-30	385
2008-12-31	374
2009-03-31	334
2009-06-30	400
2009-09-30	349
2009-12-31	413
2010-03-31	385
2010-06-30	470
2010-09-30	481
2010-12-31	362
2011-03-31	383
2011-06-30	353
2011-09-30	338
2011-12-31	428
2012-03-31	516
2012-06-30	541
2012-09-30	539
2012-12-31	325
2013-03-31	436
2013-06-30	431
2013-09-30	361
2013-12-31	339
2014-03-31	494
2014-06-30	421
2014-09-30	336
2014-12-31	264
2015-03-31	258
2015-06-30	272
2015-09-30	223
2015-12-31	218
2016-03-31	194
2016-06-30	208
2016-09-30	309
2016-12-31	324
2017-03-31	314
2017-06-30	214
2017-09-30	188
2017-12-31	143
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