Quarter	US dollars
2004-12-31	4
2005-03-31	2
2005-06-30	4
2005-09-30	7
2005-12-31	7
2006-03-31	10
2006-06-30	13
2006-09-30	50
2006-12-31	53
2007-03-31	51
2007-06-30	50
2007-09-30	29
2007-12-31	40
2008-03-31	22
2008-06-30	70
2008-09-30	48
2008-12-31	59
2009-03-31	60
2009-06-30	59
2009-09-30	106
2009-12-31	119
2010-03-31	117
2010-06-30	153
2010-09-30	135
2010-12-31	125
2011-03-31	146
2011-06-30	143
2011-09-30	146
2011-12-31	113
2012-03-31	109
2012-06-30	154
2012-09-30	108
2012-12-31	74
2013-03-31	59
2013-06-30	64
2013-09-30	79
2013-12-31	122
2014-03-31	130
2014-06-30	138
2014-09-30	160
2014-12-31	137
2015-03-31	193
2015-06-30	267
2015-09-30	179
2015-12-31	132
2016-03-31	150
2016-06-30	211
2016-09-30	273
2016-12-31	392
2017-03-31	361
2017-06-30	374
2017-09-30	384
2017-12-31	284
2018-03-31	303
2018-06-30	330
2018-09-30	549
2018-12-31	536
2019-03-31	482
2019-06-30	283
2019-09-30	520
2019-12-31	633
2020-03-31	667
2020-06-30	640
2020-09-30	529
2020-12-31	1082
2021-03-31	614
2021-06-30	891
2021-09-30	755
2021-12-31	1007
2022-03-31	794
2022-06-30	789
2022-09-30	867
2022-12-31	581
2023-03-31	359
2023-06-30	373
2023-09-30	317