Quarter	US dollars
2004-12-31	79
2005-03-31	78
2005-06-30	161
2005-09-30	53
2005-12-31	65
2006-03-31	76
2006-06-30	165
2006-09-30	288
2006-12-31	301
2007-03-31	261
2007-06-30	275
2007-09-30	218
2007-12-31	327
2008-03-31	344
2008-06-30	513
2008-09-30	433
2008-12-31	272
2009-03-31	226
2009-06-30	196
2009-09-30	331
2009-12-31	321
2010-03-31	320
2010-06-30	271
2012-06-30	593
2012-09-30	573
2012-12-31	707
2013-03-31	625
2013-06-30	452
2013-09-30	402
2013-12-31	319
2014-03-31	343
2014-06-30	491
2014-09-30	331
2014-12-31	361
2015-03-31	438
2015-06-30	370
2015-09-30	357
2015-12-31	459
2016-03-31	348
2016-06-30	277
2016-09-30	251
2016-12-31	198
2017-03-31	121
2017-06-30	162
2017-09-30	140
2017-12-31	68
2018-03-31	21
2018-06-30	57
2018-09-30	95
2018-12-31	65
2019-03-31	81
2019-06-30	109
2019-09-30	89
2019-12-31	32
2020-03-31	156
2020-06-30	143
2020-09-30	-16
2020-12-31	-23
2021-03-31	-22
2021-06-30	-25
2021-09-30	-18
2021-12-31	-43
2022-03-31	49
2022-06-30	15
2022-09-30	85
2022-12-31	55
2023-03-31	23
2023-06-30	99
2023-09-30	71