Quarter	US dollars
2004-12-31	146
2005-03-31	149
2005-06-30	95
2005-09-30	58
2005-12-31	57
2006-03-31	59
2006-06-30	78
2006-09-30	71
2006-12-31	74
2007-03-31	88
2007-06-30	92
2007-09-30	77
2007-12-31	80
2008-03-31	93
2008-06-30	94
2008-09-30	116
2008-12-31	244
2009-03-31	100
2009-06-30	249
2009-09-30	251
2009-12-31	263
2010-03-31	267
2010-06-30	271
2010-09-30	290
2010-12-31	302
2011-03-31	369
2011-06-30	350
2011-09-30	304
2011-12-31	306
2012-03-31	257
2012-06-30	253
2012-09-30	247
2014-03-31	247
2014-06-30	262
2014-09-30	251
2014-12-31	250
2015-03-31	252
2015-06-30	296
2015-09-30	318
2015-12-31	218
2016-03-31	188
2016-06-30	177
2016-09-30	175
2016-12-31	178
2017-03-31	178
2017-06-30	161
2017-09-30	162
2017-12-31	127
2018-03-31	111
2018-06-30	88
2018-09-30	52
2018-12-31	105
2019-03-31	96
2019-06-30	106
2019-09-30	111
2019-12-31	474
2020-03-31	198
2020-06-30	145
2020-09-30	180
2020-12-31	206
2021-03-31	206
2021-06-30	182
2021-09-30	167
2021-12-31	108
2022-03-31	93
2022-06-30	94
2022-09-30	76
2022-12-31	76
2023-03-31	83
2023-06-30	88
2023-09-30	100