Quarter	US dollars
2004-12-31	35
2005-03-31	28
2005-06-30	36
2005-09-30	34
2005-12-31	163
2006-03-31	165
2006-06-30	26
2006-09-30	28
2006-12-31	100
2007-03-31	100
2007-06-30	102
2007-09-30	102
2007-12-31	106
2008-03-31	109
2008-06-30	107
2008-09-30	75
2008-12-31	89
2009-03-31	85
2009-06-30	91
2009-09-30	96
2009-12-31	250
2010-03-31	253
2010-06-30	221
2010-09-30	258
2010-12-31	277
2011-03-31	313
2011-06-30	334
2011-09-30	294
2011-12-31	337
2012-03-31	248
2012-06-30	235
2012-09-30	304
2012-12-31	136
2013-03-31	90
2013-06-30	94
2013-09-30	99
2013-12-31	51
2014-03-31	48
2014-06-30	96
2014-09-30	102
2014-12-31	156
2015-03-31	123
2015-06-30	64
2015-09-30	36
2015-12-31	36
2016-03-31	106
2016-06-30	35
2016-09-30	30
2016-12-31	74
2017-03-31	58
2017-06-30	39
2017-09-30	42
2017-12-31	65
2018-03-31	98
2018-06-30	184
2018-09-30	200
2018-12-31	84
2019-03-31	42
2019-06-30	17
2019-09-30	15
2019-12-31	58
2020-03-31	12
2020-06-30	20
2020-09-30	10
2020-12-31	49
2021-03-31	8
2021-06-30	11
2021-09-30	15
2021-12-31	15
2022-03-31	14
2022-06-30	12
2022-09-30	20
2022-12-31	12
2023-03-31	18
2023-06-30	26
2023-09-30	25