Quarter	US dollars
2004-12-31	12
2005-03-31	15
2005-06-30	93
2005-09-30	103
2005-12-31	15
2006-03-31	33
2006-06-30	24
2006-09-30	34
2006-12-31	35
2007-03-31	63
2007-06-30	66
2007-09-30	43
2007-12-31	109
2008-03-31	111
2008-06-30	143
2008-09-30	376
2008-12-31	299
2009-03-31	251
2009-06-30	280
2009-09-30	227
2009-12-31	287
2010-03-31	296
2010-06-30	278
2010-09-30	276
2010-12-31	243
2011-03-31	277
2011-06-30	140
2011-09-30	139
2011-12-31	136
2012-03-31	141
2012-06-30	108
2012-09-30	118
2012-12-31	124
2013-03-31	132
2013-06-30	127
2013-09-30	100
2013-12-31	114
2014-03-31	113
2014-06-30	103
2014-09-30	101
2014-12-31	98
2015-03-31	104
2015-06-30	104
2015-09-30	111
2015-12-31	142
2016-03-31	181
2016-06-30	189
2016-09-30	143
2016-12-31	123
2017-03-31	98
2017-06-30	127
2017-09-30	101
2017-12-31	218
2018-03-31	239
2018-06-30	420
2018-09-30	408
2018-12-31	351
2019-03-31	1119
2019-06-30	928
2019-09-30	1080
2019-12-31	1032
2020-03-31	1008
2020-06-30	771
2020-09-30	765
2020-12-31	669
2021-03-31	673
2021-06-30	593
2021-09-30	605
2021-12-31	699
2022-03-31	519
2022-06-30	494
2022-09-30	536
2022-12-31	479
2023-03-31	521
2023-06-30	447
2023-09-30	446