Quarter	US dollars
2004-12-31	326
2005-03-31	427
2005-06-30	427
2005-09-30	423
2005-12-31	360
2006-03-31	352
2006-06-30	351
2006-09-30	314
2006-12-31	272
2007-03-31	261
2007-06-30	247
2007-09-30	238
2007-12-31	233
2008-03-31	181
2008-06-30	165
2008-09-30	139
2008-12-31	134
2009-03-31	265
2009-06-30	369
2009-09-30	465
2009-12-31	347
2010-03-31	199
2010-06-30	106
2010-09-30	96
2010-12-31	70
2011-03-31	66
2011-06-30	273
2011-09-30	259
2011-12-31	144
2012-03-31	185
2012-06-30	176
2012-09-30	132
2012-12-31	95
2013-03-31	91
2013-06-30	46
2013-09-30	39
2013-12-31	174
2014-03-31	63
2014-06-30	70
2014-09-30	66
2014-12-31	42
2015-03-31	46
2015-06-30	0
2015-09-30	26
2015-12-31	27
2016-03-31	14
2016-06-30	183
2016-09-30	17
2016-12-31	2
2017-03-31	4
2017-06-30	174
2017-09-30	157
2017-12-31	101
2018-03-31	87
2018-06-30	90
2018-09-30	14
2018-12-31	9
2019-03-31	14
2019-06-30	81
2019-09-30	76
2019-12-31	98
2020-03-31	89
2020-06-30	66
2020-09-30	40
2020-12-31	0
2021-03-31	-3
2021-06-30	14
2021-09-30	0
2021-12-31	0
2022-03-31	1
2022-06-30	0
2022-09-30	10
2022-12-31	3
2023-03-31	-1
2023-06-30	-4
2023-09-30	9