Quarter	US dollars
2004-12-31	280
2005-03-31	803
2005-06-30	1149
2006-12-31	1141
2007-03-31	1159
2007-06-30	1013
2007-09-30	1701
2007-12-31	1863
2008-06-30	1266
2008-12-31	239
2009-12-31	433
2010-06-30	485
2010-09-30	644
2010-12-31	892
2011-03-31	822
2011-06-30	695
2012-03-31	737
2013-03-31	383
2014-06-30	405
2014-12-31	395
2015-03-31	373
2015-06-30	327
2015-09-30	197
2015-12-31	124
2016-03-31	175
2016-06-30	247
2016-09-30	223
2016-12-31	215
2017-03-31	119
2017-06-30	44
2017-09-30	32
2017-12-31	55
2018-03-31	27
2018-06-30	26
2018-09-30	37
2018-12-31	51
2019-03-31	59
2019-06-30	59
2019-09-30	132
2019-12-31	49
2020-03-31	134
2020-06-30	95
2020-09-30	90
2020-12-31	91
2021-03-31	97
2021-06-30	97
2021-09-30	96
2021-12-31	108
2022-03-31	93
2022-06-30	88
2022-09-30	114
2022-12-31	86
2023-03-31	78
2023-06-30	82
2023-09-30	77