Quarter	US dollars
2004-12-31	4
2005-03-31	6
2005-06-30	2
2005-09-30	7
2005-12-31	7
2006-03-31	7
2006-06-30	7
2006-09-30	11
2006-12-31	8
2007-03-31	20
2007-06-30	14
2007-09-30	6
2007-12-31	10
2008-03-31	10
2008-06-30	12
2008-09-30	16
2008-12-31	13
2009-03-31	14
2009-06-30	15
2009-09-30	10
2009-12-31	8
2010-03-31	11
2010-06-30	12
2010-09-30	6
2010-12-31	13
2011-03-31	11
2011-06-30	14
2011-09-30	17
2011-12-31	17
2012-03-31	18
2012-06-30	24
2012-09-30	31
2012-12-31	27
2013-03-31	30
2013-06-30	42
2013-09-30	42
2013-12-31	23
2014-03-31	27
2014-06-30	19
2014-09-30	21
2014-12-31	28
2015-03-31	24
2015-06-30	14
2015-09-30	39
2015-12-31	28
2016-03-31	27
2016-06-30	19
2016-09-30	14
2016-12-31	36
2017-03-31	11
2017-06-30	6
2017-09-30	7
2017-12-31	9
2018-03-31	29
2018-06-30	8
2018-09-30	5
2018-12-31	3
2019-03-31	7
2019-06-30	28
2019-09-30	55
2019-12-31	71
2020-03-31	84
2020-06-30	7
2020-09-30	81
2020-12-31	190
2021-03-31	148
2021-06-30	65
2021-09-30	27
2021-12-31	47
2022-03-31	86
2022-06-30	10
2022-09-30	7
2022-12-31	22
2023-03-31	31
2023-06-30	80
2023-09-30	31