Quarter	US dollars
2004-12-31	19
2005-03-31	28
2005-06-30	29
2005-09-30	30
2005-12-31	62
2006-03-31	50
2006-06-30	96
2006-09-30	71
2006-12-31	112
2007-03-31	92
2007-06-30	108
2007-09-30	102
2007-12-31	135
2008-03-31	183
2008-06-30	149
2008-09-30	146
2008-12-31	141
2009-03-31	136
2009-06-30	127
2009-09-30	64
2009-12-31	161
2010-03-31	103
2010-06-30	123
2010-09-30	184
2010-12-31	161
2011-03-31	224
2011-06-30	133
2011-09-30	100
2011-12-31	85
2012-03-31	89
2012-06-30	242
2012-09-30	250
2012-12-31	163
2013-03-31	82
2013-06-30	212
2013-09-30	68
2013-12-31	111
2014-03-31	243
2014-06-30	253
2014-09-30	366
2014-12-31	300
2015-03-31	160
2015-06-30	38
2015-09-30	48
2015-12-31	44
2016-03-31	17
2016-06-30	228
2016-09-30	243
2016-12-31	31
2017-03-31	30
2017-06-30	61
2017-09-30	54
2017-12-31	238
2018-03-31	225
2018-06-30	220
2018-09-30	197
2018-12-31	8
2019-03-31	30
2019-06-30	57
2019-09-30	43
2019-12-31	78
2020-03-31	73
2020-06-30	68
2020-09-30	36
2020-12-31	56
2021-03-31	39
2021-06-30	46
2021-09-30	30
2021-12-31	53
2022-03-31	26
2022-06-30	38
2022-09-30	16
2022-12-31	23
2023-03-31	67
2023-06-30	16
2023-09-30	16