Quarter	US dollars
2004-12-31	19
2005-03-31	28
2005-06-30	29
2005-09-30	46
2005-12-31	67
2006-03-31	50
2006-06-30	70
2006-09-30	39
2006-12-31	112
2007-03-31	65
2007-06-30	80
2007-09-30	102
2007-12-31	135
2008-03-31	181
2008-06-30	151
2008-09-30	166
2008-12-31	267
2009-03-31	129
2009-06-30	115
2009-09-30	72
2009-12-31	149
2010-03-31	93
2010-06-30	111
2010-09-30	232
2010-12-31	327
2011-03-31	224
2011-06-30	175
2011-09-30	282
2011-12-31	284
2012-03-31	286
2012-06-30	456
2012-09-30	694
2012-12-31	513
2013-03-31	404
2013-06-30	513
2013-09-30	256
2013-12-31	269
2014-03-31	403
2014-06-30	414
2014-09-30	516
2014-12-31	445
2015-03-31	294
2015-06-30	256
2015-09-30	100
2015-12-31	96
2016-03-31	69
2016-06-30	281
2016-09-30	295
2016-12-31	82
2017-03-31	83
2017-06-30	126
2017-09-30	118
2017-12-31	353
2018-03-31	288
2018-06-30	285
2018-09-30	243
2018-12-31	42
2019-03-31	42
2019-06-30	57
2019-09-30	43
2019-12-31	78
2020-03-31	73
2020-06-30	69
2020-09-30	36
2020-12-31	56
2021-03-31	37
2021-06-30	44
2021-09-30	28
2021-12-31	51
2022-03-31	26
2022-06-30	38
2022-09-30	26
2022-12-31	22
2023-03-31	67
2023-06-30	67
2023-09-30	46