Quarter	US dollars
2004-12-31	77
2005-03-31	68
2005-06-30	65
2005-09-30	62
2005-12-31	91
2006-03-31	56
2006-06-30	44
2006-09-30	39
2006-12-31	45
2007-03-31	10
2007-06-30	14
2007-09-30	14
2007-12-31	20
2008-03-31	28
2008-06-30	52
2008-09-30	14
2008-12-31	13
2009-03-31	9
2009-06-30	13
2009-09-30	16
2009-12-31	15
2010-03-31	12
2010-06-30	13
2010-09-30	22
2010-12-31	17
2011-03-31	21
2011-06-30	29
2011-09-30	22
2011-12-31	17
2012-03-31	19
2012-06-30	24
2012-09-30	19
2012-12-31	16
2013-03-31	108
2013-06-30	105
2013-09-30	105
2013-12-31	144
2014-03-31	127
2014-06-30	123
2014-09-30	105
2014-12-31	111
2015-03-31	125
2015-06-30	105
2015-09-30	151
2015-12-31	138
2016-03-31	224
2016-06-30	122
2016-09-30	122
2016-12-31	134
2017-03-31	126
2017-06-30	127
2017-09-30	114
2017-12-31	113
2018-03-31	70
2018-06-30	65
2018-09-30	73
2018-12-31	63
2019-03-31	48
2019-06-30	55
2019-09-30	74
2019-12-31	102
2020-03-31	97
2020-06-30	104
2020-09-30	97
2020-12-31	66
2021-03-31	61
2021-06-30	65
2021-09-30	66
2021-12-31	51
2022-03-31	50
2022-06-30	44
2022-09-30	39
2022-12-31	41
2023-03-31	41
2023-06-30	10
2023-09-30	17