Quarter	US dollars
2004-12-31	58
2005-03-31	68
2005-06-30	68
2005-09-30	76
2005-12-31	110
2006-03-31	106
2006-06-30	105
2006-09-30	101
2006-12-31	115
2007-03-31	116
2007-06-30	114
2007-09-30	134
2007-12-31	127
2008-03-31	135
2008-06-30	159
2008-09-30	157
2008-12-31	89
2009-03-31	1
2009-06-30	0
2009-09-30	46
2009-12-31	2
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	0
2011-03-31	0
2011-06-30	0
2011-09-30	0
2011-12-31	17
2012-03-31	74
2012-06-30	52
2012-09-30	82
2012-12-31	78
2013-03-31	79
2013-06-30	68
2013-09-30	84
2013-12-31	157
2014-03-31	185
2014-06-30	174
2014-09-30	188
2014-12-31	172
2015-03-31	200
2015-06-30	239
2015-09-30	239
2015-12-31	242
2016-03-31	263
2016-06-30	255
2016-09-30	230
2016-12-31	223
2017-03-31	228
2017-06-30	233
2017-09-30	228
2017-12-31	14
2018-03-31	13
2018-06-30	11
2018-09-30	9
2018-12-31	20
2019-03-31	20
2019-06-30	17
2019-09-30	16
2019-12-31	15
2020-03-31	94
2020-06-30	74
2020-09-30	74
2020-12-31	76
2021-03-31	72
2021-06-30	72
2021-09-30	70
2021-12-31	9
2022-03-31	9
2022-06-30	11
2022-09-30	9
2022-12-31	8
2023-03-31	9
2023-06-30	9
2023-09-30	6