Quarter	US dollars
2004-12-31	21
2005-03-31	51
2005-06-30	32
2005-09-30	30
2005-12-31	51
2006-03-31	35
2006-06-30	31
2006-09-30	32
2006-12-31	37
2007-03-31	59
2007-06-30	48
2007-09-30	43
2007-12-31	54
2008-03-31	72
2008-06-30	56
2008-09-30	53
2008-12-31	69
2009-03-31	69
2009-06-30	140
2009-09-30	77
2009-12-31	139
2010-03-31	83
2010-06-30	91
2010-09-30	96
2010-12-31	103
2011-03-31	128
2011-06-30	104
2011-09-30	92
2011-12-31	90
2012-03-31	104
2012-06-30	119
2012-09-30	178
2012-12-31	192
2013-03-31	199
2013-06-30	200
2013-09-30	212
2013-12-31	185
2014-03-31	192
2014-06-30	152
2014-09-30	138
2014-12-31	106
2015-03-31	88
2015-06-30	44
2015-09-30	123
2015-12-31	70
2016-03-31	73
2016-06-30	63
2016-09-30	134
2016-12-31	60
2017-03-31	63
2017-06-30	36
2017-09-30	35
2017-12-31	38
2018-03-31	44
2018-06-30	32
2018-09-30	38
2018-12-31	33
2019-03-31	64
2019-06-30	36
2019-09-30	46
2019-12-31	28
2020-03-31	26
2020-06-30	32
2020-09-30	44
2020-12-31	37
2021-03-31	41
2021-06-30	43
2021-09-30	34
2021-12-31	31
2022-03-31	37
2022-06-30	29
2022-09-30	16
2022-12-31	22
2023-03-31	24
2023-06-30	21
2023-09-30	11