Quarter	US dollars
2004-12-31	42
2005-03-31	102
2005-06-30	66
2005-09-30	60
2005-12-31	53
2006-03-31	54
2006-06-30	57
2006-09-30	84
2006-12-31	49
2007-03-31	53
2007-06-30	74
2007-09-30	59
2007-12-31	54
2008-03-31	151
2008-06-30	137
2008-09-30	135
2008-12-31	148
2009-03-31	90
2009-06-30	71
2009-09-30	86
2009-12-31	161
2010-03-31	108
2010-06-30	88
2010-09-30	210
2010-12-31	194
2011-03-31	127
2011-06-30	141
2011-09-30	164
2011-12-31	294
2012-03-31	259
2012-06-30	309
2012-09-30	265
2012-12-31	254
2013-03-31	206
2013-06-30	273
2013-09-30	1075
2013-12-31	266
2014-03-31	260
2014-06-30	222
2014-09-30	237
2014-12-31	197
2015-03-31	186
2015-06-30	167
2015-09-30	176
2015-12-31	159
2016-03-31	161
2016-06-30	149
2016-09-30	142
2016-12-31	108
2017-03-31	123
2017-06-30	287
2017-09-30	241
2017-12-31	234
2018-03-31	243
2018-06-30	250
2018-09-30	248
2018-12-31	259
2019-03-31	463
2019-06-30	424
2019-09-30	1060
2019-12-31	338
2020-03-31	213
2020-06-30	163
2020-09-30	168
2020-12-31	98
2021-03-31	105
2021-06-30	77
2021-09-30	80
2021-12-31	42
2022-03-31	45
2022-06-30	72
2022-09-30	81
2022-12-31	61
2023-03-31	67
2023-06-30	107
2023-09-30	127