Quarter	US dollars
2004-12-31	4
2005-03-31	19
2005-06-30	9
2005-09-30	9
2005-12-31	7
2006-03-31	7
2006-06-30	4
2006-09-30	4
2006-12-31	4
2007-03-31	4
2007-06-30	6
2007-09-30	6
2007-12-31	6
2008-03-31	28
2008-06-30	40
2008-09-30	27
2008-12-31	20
2009-03-31	10
2009-06-30	16
2009-09-30	19
2009-12-31	16
2010-03-31	20
2010-06-30	30
2010-09-30	39
2010-12-31	36
2011-03-31	27
2011-06-30	34
2011-09-30	41
2011-12-31	32
2012-03-31	34
2012-06-30	45
2012-09-30	42
2014-03-31	23
2014-06-30	19
2014-09-30	5
2014-12-31	6
2015-03-31	13
2015-06-30	17
2015-09-30	18
2015-12-31	22
2016-03-31	30
2016-06-30	23
2016-09-30	16
2016-12-31	28
2017-03-31	33
2017-06-30	86
2017-09-30	114
2017-12-31	84
2018-03-31	105
2018-06-30	110
2018-09-30	94
2018-12-31	97
2019-03-31	82
2019-06-30	90
2019-09-30	116
2019-12-31	116
2020-03-31	134
2020-06-30	125
2020-09-30	96
2020-12-31	115
2021-03-31	166
2021-06-30	173
2021-09-30	204
2021-12-31	197
2022-03-31	183
2022-06-30	238
2022-09-30	331
2022-12-31	248
2023-03-31	234
2023-06-30	229
2023-09-30	246