Quarter	US dollars
2004-12-31	81
2005-03-31	79
2005-06-30	70
2005-09-30	124
2005-12-31	336
2006-03-31	310
2006-06-30	324
2006-09-30	295
2006-12-31	380
2007-03-31	410
2007-06-30	566
2007-09-30	497
2007-12-31	607
2008-03-31	566
2008-06-30	197
2008-09-30	544
2008-12-31	505
2009-03-31	509
2009-06-30	534
2009-09-30	565
2009-12-31	564
2010-03-31	522
2010-06-30	694
2010-09-30	673
2010-12-31	553
2011-03-31	500
2011-06-30	682
2011-09-30	743
2011-12-31	802
2012-03-31	863
2012-06-30	720
2012-09-30	1088
2012-12-31	975
2013-03-31	1020
2013-06-30	854
2013-09-30	622
2013-12-31	750
2014-03-31	333
2014-06-30	282
2014-09-30	199
2014-12-31	175
2015-03-31	131
2015-06-30	192
2015-09-30	173
2015-12-31	104
2016-03-31	79
2016-06-30	234
2016-09-30	179
2016-12-31	186
2017-03-31	296
2017-06-30	109
2017-09-30	74
2017-12-31	320
2018-03-31	196
2018-06-30	139
2018-09-30	194
2018-12-31	397
2019-03-31	364
2019-06-30	354
2019-09-30	344
2019-12-31	116
2020-03-31	128
2020-06-30	54
2020-09-30	28
2020-12-31	59
2021-03-31	40
2021-06-30	106
2021-09-30	36
2021-12-31	69
2022-03-31	79
2022-06-30	70
2022-09-30	40
2022-12-31	59
2023-03-31	72
2023-06-30	53
2023-09-30	60