Quarter	US dollars
2004-12-31	25
2005-03-31	25
2005-06-30	5
2005-09-30	5
2005-12-31	7
2006-03-31	3
2006-06-30	57
2006-09-30	174
2006-12-31	102
2007-03-31	104
2007-06-30	72
2007-09-30	57
2007-12-31	830
2008-03-31	892
2008-06-30	800
2008-09-30	716
2008-12-31	597
2009-03-31	64
2009-06-30	99
2009-09-30	48
2009-12-31	207
2010-03-31	224
2010-06-30	235
2010-09-30	388
2010-12-31	213
2011-03-31	439
2011-06-30	286
2011-09-30	2821
2011-12-31	439
2012-03-31	294
2012-06-30	295
2012-09-30	118
2012-12-31	74
2013-03-31	334
2013-06-30	343
2013-09-30	309
2013-12-31	7
2014-03-31	17
2014-06-30	97
2014-09-30	50
2014-12-31	66
2015-03-31	160
2015-06-30	85
2015-09-30	6
2015-12-31	4
2016-03-31	175
2016-06-30	227
2016-09-30	125
2016-12-31	175
2017-03-31	144
2017-06-30	170
2017-09-30	91
2017-12-31	358
2018-03-31	1050
2018-06-30	840
2018-09-30	977
2018-12-31	765
2019-03-31	580
2019-06-30	76
2019-09-30	142
2019-12-31	236
2020-03-31	287
2020-06-30	135
2020-09-30	75
2020-12-31	86
2021-03-31	40
2021-06-30	55
2021-09-30	90
2021-12-31	84
2022-03-31	50
2022-06-30	144
2022-09-30	820
2022-12-31	470
2023-03-31	1076
2023-06-30	630
2023-09-30	489