Quarter	US dollars
2004-12-31	38
2005-03-31	59
2005-06-30	102
2005-09-30	103
2005-12-31	113
2006-03-31	123
2006-06-30	83
2006-09-30	121
2006-12-31	96
2007-03-31	98
2007-06-30	148
2007-09-30	134
2007-12-31	133
2008-03-31	175
2008-06-30	213
2008-09-30	267
2008-12-31	265
2009-03-31	195
2009-06-30	120
2009-09-30	149
2009-12-31	134
2010-03-31	147
2010-06-30	49
2010-09-30	96
2010-12-31	88
2011-03-31	82
2011-06-30	159
2011-09-30	59
2011-12-31	142
2012-03-31	149
2012-06-30	77
2012-09-30	78
2012-12-31	87
2013-03-31	128
2013-06-30	132
2013-09-30	121
2013-12-31	114
2014-03-31	53
2014-06-30	29
2014-09-30	52
2014-12-31	144
2015-03-31	101
2015-06-30	61
2015-09-30	36
2015-12-31	92
2016-03-31	65
2016-06-30	42
2016-09-30	266
2016-12-31	545
2017-03-31	514
2017-06-30	268
2017-09-30	259
2017-12-31	259
2018-03-31	253
2018-06-30	251
2018-09-30	250
2018-12-31	250
2019-03-31	258
2019-06-30	258
2019-09-30	257
2019-12-31	258
2020-03-31	251
2020-06-30	154
2020-09-30	171
2020-12-31	188
2021-03-31	218
2021-06-30	166
2021-09-30	102
2021-12-31	127
2022-03-31	96
2022-06-30	95
2022-09-30	80
2022-12-31	63
2023-03-31	75
2023-06-30	83
2023-09-30	72