Quarter	US dollars
2004-12-31	46
2005-03-31	43
2005-06-30	39
2005-09-30	39
2005-12-31	36
2006-03-31	35
2006-06-30	35
2006-09-30	35
2006-12-31	35
2007-03-31	33
2007-06-30	34
2007-09-30	33
2007-12-31	34
2008-03-31	34
2008-06-30	34
2008-09-30	32
2008-12-31	30
2009-03-31	29
2009-06-30	31
2009-09-30	32
2009-12-31	34
2010-03-31	32
2010-06-30	28
2010-09-30	32
2010-12-31	52
2011-03-31	59
2011-06-30	55
2011-09-30	51
2011-12-31	49
2012-03-31	51
2012-06-30	78
2012-09-30	81
2012-12-31	82
2013-03-31	0
2013-06-30	0
2013-09-30	0
2013-12-31	0
2014-03-31	0
2014-06-30	0
2014-09-30	0
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	0
2016-03-31	-10
2016-06-30	7
2016-09-30	1
2016-12-31	0
2017-03-31	3
2017-06-30	144
2017-09-30	160
2017-12-31	204
2018-03-31	307
2018-06-30	166
2018-09-30	220
2018-12-31	211
2019-03-31	331
2019-06-30	298
2019-09-30	186
2019-12-31	226
2020-03-31	212
2020-06-30	220
2020-09-30	203
2020-12-31	248
2021-03-31	223
2021-06-30	239
2021-09-30	231
2021-12-31	375
2022-03-31	309
2022-06-30	292
2022-09-30	248
2022-12-31	383
2023-03-31	562
2023-06-30	492
2023-09-30	239