Quarter	US dollars
2004-12-31	13
2005-03-31	25
2005-06-30	20
2005-09-30	21
2005-12-31	38
2006-03-31	614
2006-06-30	723
2006-09-30	508
2006-12-31	650
2007-03-31	600
2007-06-30	474
2007-09-30	377
2007-12-31	494
2008-03-31	362
2008-06-30	217
2008-09-30	232
2008-12-31	115
2009-03-31	70
2009-06-30	156
2009-09-30	227
2009-12-31	226
2010-03-31	240
2010-06-30	287
2010-09-30	304
2010-12-31	246
2011-03-31	152
2011-06-30	231
2011-09-30	203
2011-12-31	147
2012-03-31	208
2012-06-30	162
2012-09-30	195
2012-12-31	173
2013-03-31	184
2013-06-30	158
2013-09-30	175
2013-12-31	172
2014-03-31	212
2014-06-30	229
2014-09-30	255
2014-12-31	190
2015-03-31	186
2015-06-30	157
2015-09-30	141
2015-12-31	138
2016-03-31	135
2016-06-30	149
2016-09-30	161
2016-12-31	663
2017-03-31	773
2017-06-30	1059
2017-09-30	1366
2017-12-31	1319
2018-03-31	1545
2018-06-30	794
2018-09-30	441
2018-12-31	663
2019-03-31	859
2019-06-30	1032
2019-09-30	754
2019-12-31	889
2020-03-31	291
2020-06-30	252
2020-09-30	1255
2020-12-31	1288
2021-03-31	1335
2021-06-30	1632
2021-09-30	1710
2021-12-31	639
2022-03-31	117
2022-06-30	54
2022-09-30	84
2022-12-31	113
2023-03-31	94
2023-06-30	311
2023-09-30	329