Quarter	US dollars
2004-12-31	56
2005-03-31	76
2005-06-30	66
2005-09-30	67
2005-12-31	53
2006-03-31	75
2006-06-30	76
2006-09-30	62
2006-12-31	70
2007-03-31	214
2007-06-30	241
2007-09-30	304
2007-12-31	221
2008-03-31	149
2008-06-30	115
2008-09-30	189
2008-12-31	50
2009-03-31	148
2009-06-30	107
2009-09-30	82
2009-12-31	45
2010-03-31	73
2010-06-30	135
2010-09-30	60
2010-12-31	25
2011-03-31	10
2011-06-30	37
2011-09-30	45
2011-12-31	62
2012-03-31	14
2012-06-30	223
2012-09-30	260
2012-12-31	234
2013-03-31	246
2013-06-30	256
2013-09-30	285
2013-12-31	255
2014-03-31	245
2014-06-30	241
2014-09-30	277
2014-12-31	315
2015-03-31	306
2015-06-30	90
2015-09-30	83
2015-12-31	74
2016-03-31	85
2016-06-30	58
2016-09-30	77
2016-12-31	63
2017-03-31	61
2017-06-30	158
2017-09-30	157
2017-12-31	188
2018-03-31	199
2018-06-30	463
2018-09-30	146
2018-12-31	192
2019-03-31	238
2019-06-30	188
2019-09-30	152
2019-12-31	454
2020-03-31	414
2020-06-30	201
2020-09-30	355
2020-12-31	315
2021-03-31	654
2021-06-30	882
2021-09-30	928
2021-12-31	1088
2022-03-31	1204
2022-06-30	1172
2022-09-30	1127
2022-12-31	816
2023-03-31	709
2023-06-30	477
2023-09-30	272