Quarter	US dollars
2004-12-31	10
2005-03-31	8
2005-06-30	7
2005-09-30	11
2005-12-31	9
2006-03-31	5
2006-06-30	11
2006-09-30	7
2006-12-31	14
2007-03-31	27
2007-06-30	522
2007-09-30	157
2007-12-31	147
2008-03-31	147
2008-06-30	46
2008-09-30	96
2008-12-31	135
2009-03-31	118
2009-06-30	122
2009-09-30	257
2009-12-31	168
2010-03-31	165
2010-06-30	196
2010-09-30	79
2010-12-31	27
2011-03-31	83
2011-06-30	101
2011-09-30	97
2011-12-31	130
2012-03-31	115
2012-06-30	157
2012-09-30	152
2012-12-31	92
2013-03-31	91
2013-06-30	82
2013-09-30	76
2013-12-31	64
2014-03-31	18
2014-06-30	19
2014-09-30	13
2014-12-31	8
2015-03-31	31
2015-06-30	46
2015-09-30	80
2015-12-31	82
2016-03-31	142
2016-06-30	150
2016-09-30	129
2016-12-31	143
2017-03-31	124
2017-06-30	326
2017-09-30	283
2017-12-31	189
2018-03-31	226
2018-06-30	214
2018-09-30	230
2018-12-31	193
2019-03-31	195
2019-06-30	130
2019-09-30	121
2019-12-31	279
2020-03-31	257
2020-06-30	132
2020-09-30	124
2020-12-31	135
2021-03-31	155
2021-06-30	158
2021-09-30	218
2021-12-31	150
2022-03-31	128
2022-06-30	137
2022-09-30	121
2022-12-31	102
2023-03-31	84
2023-06-30	58
2023-09-30	95