Quarter	US dollars
2004-12-31	384
2005-03-31	372
2005-06-30	289
2005-09-30	402
2005-12-31	336
2006-03-31	378
2006-06-30	540
2006-09-30	333
2006-12-31	172
2007-03-31	702
2007-06-30	680
2007-09-30	623
2007-12-31	589
2008-03-31	471
2008-06-30	340
2008-09-30	631
2008-12-31	275
2009-03-31	110
2009-06-30	204
2009-09-30	245
2009-12-31	44
2010-03-31	308
2010-06-30	148
2010-09-30	110
2010-12-31	53
2011-03-31	111
2011-06-30	318
2011-09-30	523
2011-12-31	175
2012-03-31	193
2012-06-30	177
2012-09-30	113
2012-12-31	84
2013-03-31	82
2013-06-30	65
2013-09-30	52
2013-12-31	83
2014-03-31	125
2014-06-30	111
2014-09-30	104
2014-12-31	48
2015-03-31	217
2015-06-30	187
2015-09-30	265
2015-12-31	101
2016-03-31	170
2016-06-30	277
2016-09-30	404
2016-12-31	97
2017-03-31	275
2017-06-30	307
2017-09-30	448
2017-12-31	530
2018-03-31	335
2018-06-30	162
2018-09-30	-21
2018-12-31	73
2019-03-31	-13
2019-06-30	104
2019-09-30	107
2019-12-31	160
2020-03-31	88
2020-06-30	225
2020-09-30	115
2020-12-31	87
2021-03-31	30
2021-06-30	23
2021-09-30	67
2021-12-31	47
2022-03-31	21
2022-06-30	-16
2022-09-30	-35
2022-12-31	-19
2023-03-31	-2
2023-06-30	36
2023-09-30	46