Quarter	US dollars
2004-12-31	29
2006-03-31	40
2006-12-31	55
2007-03-31	51
2007-06-30	62
2007-09-30	73
2007-12-31	76
2008-03-31	103
2008-06-30	90
2008-09-30	98
2008-12-31	92
2009-03-31	92
2009-06-30	94
2009-09-30	86
2009-12-31	84
2010-03-31	32
2010-06-30	25
2010-09-30	25
2010-12-31	19
2011-03-31	18
2011-06-30	24
2011-09-30	41
2011-12-31	42
2012-03-31	43
2012-06-30	83
2012-09-30	63
2012-12-31	50
2013-03-31	117
2013-06-30	106
2013-09-30	118
2013-12-31	107
2014-03-31	128
2014-06-30	132
2014-09-30	125
2015-03-31	110
2015-06-30	110
2015-09-30	112
2015-12-31	82
2016-03-31	95
2016-06-30	75
2016-09-30	56
2016-12-31	36
2017-03-31	34
2017-06-30	35
2017-09-30	36
2017-12-31	35
2018-03-31	41
2018-06-30	33
2018-09-30	39
2018-12-31	42
2019-03-31	36
2019-06-30	31
2019-09-30	31
2019-12-31	34
2020-03-31	33
2020-06-30	32
2020-09-30	16
2020-12-31	22
2021-03-31	28
2021-06-30	28
2021-09-30	23
2021-12-31	27
2022-03-31	29
2022-06-30	28
2022-09-30	22
2022-12-31	23
2023-03-31	22
2023-06-30	23
2023-09-30	22