Quarter	US dollars
1999-09-30	257
1999-12-31	266
2000-03-31	262
2000-06-30	268
2000-09-30	279
2000-12-31	290
2001-03-31	272
2001-06-30	297
2001-09-30	357
2001-12-31	360
2002-03-31	343
2002-06-30	339
2002-09-30	324
2002-12-31	185
2003-03-31	185
2003-06-30	183
2003-09-30	191
2003-12-31	113
2004-03-31	103
2004-06-30	83
2004-09-30	83
2004-12-31	86
2005-03-31	87
2005-06-30	81
2005-09-30	74
2005-12-31	67
2006-03-31	80
2006-06-30	107
2006-09-30	80
2006-12-31	164
2007-03-31	178
2007-06-30	177
2007-09-30	104
2007-12-31	155
2008-03-31	229
2008-06-30	587
2008-09-30	276
2008-12-31	375
2009-03-31	398
2009-06-30	244
2009-09-30	213
2009-12-31	210
2010-03-31	152
2010-06-30	151
2010-09-30	129
2010-12-31	142
2011-03-31	147
2011-06-30	136
2011-09-30	142
2011-12-31	201
2012-03-31	189
2012-06-30	205
2012-09-30	174
2012-12-31	162
2013-03-31	179
2013-06-30	173
2013-09-30	185
2013-12-31	149
2014-03-31	150
2014-06-30	149
2014-09-30	139
2014-12-31	109
2015-03-31	113
2015-06-30	109
2015-09-30	8
2015-12-31	6
2016-03-31	6
2016-06-30	7
2016-09-30	8
2016-12-31	9
2017-03-31	8
2017-06-30	6
2017-09-30	4
2017-12-31	4
2018-03-31	8
2018-06-30	12
2018-09-30	9
2018-12-31	9
2019-03-31	7
2019-06-30	6
2019-09-30	6
2019-12-31	7
2020-03-31	6
2020-06-30	6
2020-09-30	6
2020-12-31	7
2021-03-31	6
2021-06-30	6
2021-09-30	5
2021-12-31	5
2022-03-31	8
2022-06-30	9
2022-09-30	8
2022-12-31	9
2023-03-31	8
2023-06-30	7
2023-09-30	11