Quarter	US dollars
2004-12-31	138
2005-03-31	202
2005-06-30	91
2005-09-30	55
2005-12-31	79
2006-03-31	71
2006-06-30	115
2006-09-30	90
2006-12-31	708
2007-03-31	610
2007-06-30	730
2007-09-30	990
2007-12-31	952
2008-03-31	1016
2008-06-30	985
2008-09-30	852
2008-12-31	868
2009-03-31	727
2009-06-30	726
2009-09-30	926
2009-12-31	732
2010-03-31	781
2010-06-30	1137
2010-09-30	931
2010-12-31	1395
2011-03-31	1603
2011-06-30	1318
2011-09-30	1270
2011-12-31	1429
2012-03-31	1416
2012-06-30	1391
2012-09-30	1311
2012-12-31	1243
2013-03-31	1245
2013-06-30	1109
2013-09-30	1022
2013-12-31	848
2014-03-31	167
2014-06-30	222
2014-09-30	222
2014-12-31	211
2015-03-31	457
2015-06-30	675
2015-09-30	626
2015-12-31	630
2016-03-31	554
2016-06-30	604
2016-09-30	613
2016-12-31	593
2017-03-31	579
2017-06-30	414
2017-09-30	420
2017-12-31	301
2018-03-31	302
2018-06-30	298
2018-09-30	297
2018-12-31	188
2019-03-31	344
2019-06-30	242
2019-09-30	144
2019-12-31	147
2020-03-31	146
2020-06-30	138
2020-09-30	106
2020-12-31	97
2021-03-31	98
2021-06-30	90
2021-09-30	90
2021-12-31	44
2022-03-31	45
2022-06-30	39
2022-09-30	40
2022-12-31	60
2023-03-31	60
2023-06-30	54
2023-09-30	53