Quarter	US dollars
2004-12-31	25
2005-03-31	32
2005-06-30	38
2005-09-30	35
2005-12-31	31
2006-03-31	14
2006-06-30	18
2006-09-30	26
2006-12-31	22
2007-03-31	18
2007-06-30	24
2007-09-30	39
2007-12-31	30
2008-03-31	30
2008-06-30	36
2008-09-30	25
2008-12-31	13
2009-03-31	39
2009-06-30	35
2009-09-30	35
2009-12-31	58
2010-03-31	46
2010-06-30	57
2010-09-30	52
2010-12-31	19
2011-03-31	45
2011-06-30	40
2011-09-30	37
2011-12-31	40
2012-03-31	26
2012-06-30	78
2012-09-30	144
2012-12-31	167
2013-03-31	162
2013-06-30	53
2013-09-30	39
2013-12-31	40
2014-03-31	28
2014-06-30	55
2014-09-30	81
2014-12-31	105
2015-03-31	125
2015-06-30	181
2015-09-30	138
2015-12-31	194
2016-03-31	191
2016-06-30	101
2016-09-30	210
2016-12-31	176
2017-03-31	336
2017-06-30	240
2017-09-30	237
2017-12-31	245
2018-03-31	166
2018-06-30	104
2018-09-30	83
2018-12-31	116
2019-03-31	89
2019-06-30	107
2019-09-30	118
2019-12-31	36
2020-03-31	50
2020-06-30	131
2020-09-30	133
2020-12-31	198
2021-03-31	189
2021-06-30	158
2021-09-30	135
2021-12-31	128
2022-03-31	87
2022-06-30	269
2022-09-30	245
2022-12-31	107
2023-03-31	115
2023-06-30	108
2023-09-30	112