Quarter	US dollars
2004-12-31	2
2005-03-31	8
2005-06-30	61
2005-09-30	35
2005-12-31	2
2006-03-31	24
2006-06-30	15
2006-09-30	15
2006-12-31	16
2007-03-31	39
2007-06-30	22
2007-09-30	73
2007-12-31	80
2008-03-31	78
2008-06-30	66
2008-09-30	50
2008-12-31	32
2009-03-31	33
2009-06-30	46
2009-09-30	54
2009-12-31	37
2010-03-31	35
2010-06-30	67
2010-09-30	80
2010-12-31	114
2011-03-31	123
2011-06-30	95
2011-09-30	104
2011-12-31	43
2012-03-31	43
2012-06-30	75
2012-09-30	111
2012-12-31	99
2013-03-31	88
2013-06-30	52
2013-09-30	45
2013-12-31	40
2014-03-31	85
2014-06-30	87
2014-09-30	130
2014-12-31	295
2015-03-31	119
2015-06-30	149
2015-09-30	247
2015-12-31	89
2016-03-31	88
2016-06-30	121
2016-09-30	158
2016-12-31	385
2017-03-31	161
2017-06-30	171
2017-09-30	246
2017-12-31	598
2018-03-31	540
2018-06-30	446
2018-09-30	310
2018-12-31	903
2019-03-31	541
2019-06-30	372
2019-09-30	564
2019-12-31	557
2020-03-31	371
2020-06-30	519
2020-09-30	835
2020-12-31	596
2021-03-31	635
2021-06-30	565
2021-09-30	419
2021-12-31	418
2022-03-31	866
2022-06-30	648
2022-09-30	995
2022-12-31	850
2023-03-31	734
2023-06-30	501
2023-09-30	652