Quarter	US dollars
2004-12-31	33
2005-03-31	43
2005-06-30	47
2005-09-30	48
2005-12-31	55
2006-03-31	56
2006-06-30	57
2006-09-30	52
2006-12-31	74
2007-03-31	92
2007-06-30	116
2007-09-30	128
2007-12-31	115
2008-03-31	141
2008-06-30	185
2008-09-30	155
2008-12-31	135
2009-03-31	130
2009-06-30	163
2009-09-30	165
2009-12-31	171
2010-03-31	185
2010-06-30	195
2010-09-30	328
2010-12-31	316
2011-03-31	319
2011-06-30	276
2011-09-30	268
2011-12-31	264
2012-03-31	264
2012-06-30	234
2012-09-30	250
2012-12-31	255
2013-03-31	241
2013-06-30	226
2013-09-30	217
2013-12-31	207
2014-03-31	188
2014-06-30	188
2014-09-30	180
2014-12-31	75
2015-03-31	74
2015-06-30	68
2015-09-30	79
2015-12-31	86
2016-03-31	89
2016-06-30	20
2016-09-30	18
2016-12-31	27
2017-03-31	23
2017-06-30	19
2017-09-30	15
2017-12-31	19
2018-03-31	17
2018-06-30	15
2018-09-30	13
2018-12-31	15
2019-03-31	18
2019-06-30	17
2019-09-30	22
2019-12-31	25
2020-03-31	24
2020-06-30	20
2020-09-30	32
2020-12-31	35
2021-03-31	39
2021-06-30	41
2021-09-30	43
2021-12-31	34
2022-03-31	33
2022-06-30	30
2022-09-30	25
2022-12-31	26
2023-03-31	25
2023-06-30	24
2023-09-30	23