Quarter	US dollars
2004-12-31	31
2005-03-31	36
2005-06-30	18
2005-09-30	12
2005-12-31	10
2006-03-31	19
2006-06-30	18
2006-09-30	13
2008-12-31	68
2010-06-30	30
2010-12-31	2
2012-12-31	171
2013-03-31	155
2013-06-30	161
2013-09-30	172
2013-12-31	81
2014-03-31	68
2014-06-30	44
2014-09-30	50
2014-12-31	30
2015-03-31	55
2015-06-30	30
2015-09-30	55
2015-12-31	31
2016-03-31	35
2016-06-30	34
2016-09-30	26
2016-12-31	27
2017-03-31	34
2017-06-30	25
2017-09-30	25
2017-12-31	11
2018-03-31	21
2018-06-30	48
2018-09-30	-1
2018-12-31	17
2019-03-31	0
2019-06-30	8
2019-09-30	-26
2019-12-31	-11
2020-03-31	12
2020-06-30	62
2020-09-30	67
2020-12-31	66
2021-03-31	50
2021-06-30	3
2021-09-30	4
2021-12-31	0
2022-03-31	4
2022-06-30	5
2022-09-30	2
2022-12-31	1
2023-03-31	11
2023-06-30	8
2023-09-30	25