Quarter	US dollars
2004-12-31	38
2005-03-31	30
2005-06-30	36
2005-09-30	39
2005-12-31	26
2006-03-31	31
2006-06-30	39
2006-09-30	39
2006-12-31	43
2007-03-31	47
2007-06-30	56
2007-09-30	49
2007-12-31	54
2008-03-31	93
2008-06-30	115
2008-09-30	87
2008-12-31	73
2009-03-31	44
2009-06-30	48
2009-09-30	50
2009-12-31	8
2010-03-31	49
2010-06-30	97
2010-09-30	93
2010-12-31	85
2011-03-31	67
2011-06-30	77
2011-09-30	70
2011-12-31	87
2012-03-31	53
2012-06-30	108
2012-09-30	129
2012-12-31	144
2013-03-31	141
2013-06-30	170
2013-09-30	154
2013-12-31	162
2014-03-31	133
2014-06-30	53
2014-09-30	55
2014-12-31	53
2015-03-31	98
2015-06-30	44
2015-09-30	45
2015-12-31	67
2016-03-31	56
2016-06-30	34
2016-09-30	42
2016-12-31	43
2017-03-31	75
2017-06-30	266
2017-09-30	641
2017-12-31	727
2018-03-31	560
2018-06-30	684
2018-09-30	700
2018-12-31	663
2019-03-31	569
2019-06-30	597
2019-09-30	750
2019-12-31	700
2020-03-31	738
2020-06-30	821
2020-09-30	1012
2020-12-31	1076
2021-03-31	1129
2021-06-30	1121
2021-09-30	1316
2021-12-31	1519
2022-03-31	1590
2022-06-30	1515
2022-09-30	1654
2022-12-31	1654
2023-03-31	1415
2023-06-30	1262
2023-09-30	1253