Quarter	US dollars
2004-12-31	29
2005-03-31	40
2005-06-30	56
2005-09-30	34
2005-12-31	48
2006-03-31	36
2006-06-30	74
2006-09-30	84
2006-12-31	72
2007-03-31	61
2007-06-30	114
2007-09-30	151
2007-12-31	125
2008-03-31	115
2008-06-30	103
2008-09-30	61
2008-12-31	62
2009-03-31	-32
2009-06-30	59
2009-09-30	67
2009-12-31	71
2010-03-31	83
2010-06-30	31
2010-09-30	14
2010-12-31	22
2011-03-31	29
2011-06-30	45
2011-09-30	2
2011-12-31	3
2012-03-31	6
2012-06-30	8
2012-09-30	39
2012-12-31	37
2013-03-31	15
2013-06-30	11
2013-09-30	118
2013-12-31	132
2014-03-31	88
2014-06-30	109
2014-09-30	75
2014-12-31	69
2015-03-31	80
2015-06-30	82
2015-09-30	73
2015-12-31	61
2016-03-31	26
2016-06-30	32
2016-09-30	31
2016-12-31	34
2017-03-31	38
2017-06-30	70
2017-09-30	55
2017-12-31	89
2018-03-31	296
2018-06-30	305
2018-09-30	347
2018-12-31	404
2019-03-31	481
2019-06-30	622
2019-09-30	355
2019-12-31	410
2020-03-31	427
2020-06-30	404
2020-09-30	482
2020-12-31	468
2021-03-31	486
2021-06-30	531
2021-09-30	441
2021-12-31	364
2022-03-31	286
2022-06-30	58
2022-09-30	47
2022-12-31	39
2023-03-31	65
2023-06-30	108
2023-09-30	130