Quarter	US dollars
2004-12-31	60
2005-03-31	98
2005-06-30	93
2005-09-30	80
2005-12-31	76
2006-03-31	76
2006-06-30	37
2006-09-30	35
2006-12-31	65
2007-03-31	37
2007-06-30	64
2007-09-30	108
2007-12-31	64
2008-03-31	66
2008-06-30	52
2008-09-30	175
2008-12-31	220
2009-03-31	56
2009-06-30	206
2009-09-30	221
2009-12-31	213
2010-03-31	212
2010-06-30	247
2010-09-30	252
2010-12-31	221
2011-03-31	341
2011-06-30	287
2011-09-30	238
2011-12-31	257
2012-03-31	260
2012-06-30	257
2012-09-30	213
2012-12-31	134
2013-03-31	132
2013-06-30	144
2013-09-30	164
2013-12-31	147
2014-03-31	153
2014-06-30	174
2014-09-30	148
2014-12-31	137
2015-03-31	150
2015-06-30	165
2015-09-30	145
2015-12-31	122
2016-03-31	119
2016-06-30	110
2016-09-30	120
2016-12-31	87
2017-03-31	113
2017-06-30	92
2017-09-30	63
2017-12-31	46
2018-03-31	46
2018-06-30	69
2018-09-30	99
2018-12-31	125
2019-03-31	96
2019-06-30	94
2019-09-30	90
2019-12-31	89
2020-03-31	68
2020-06-30	72
2020-09-30	220
2020-12-31	228
2021-03-31	105
2021-06-30	75
2021-09-30	74
2021-12-31	65
2022-03-31	51
2022-06-30	75
2022-09-30	74
2022-12-31	105
2023-03-31	73
2023-06-30	91
2023-09-30	89