Quarter	US dollars
2004-12-31	1069
2005-03-31	760
2005-06-30	991
2005-09-30	768
2005-12-31	846
2006-03-31	1131
2006-06-30	921
2006-09-30	1014
2006-12-31	1206
2007-03-31	1255
2007-06-30	857
2007-09-30	1471
2007-12-31	665
2008-03-31	2363
2008-06-30	1148
2008-09-30	1517
2008-12-31	658
2009-03-31	772
2009-06-30	1117
2009-09-30	1954
2009-12-31	1140
2010-03-31	130
2010-06-30	227
2010-09-30	165
2010-12-31	218
2011-03-31	216
2011-06-30	594
2011-09-30	229
2011-12-31	173
2012-03-31	489
2012-06-30	234
2012-09-30	430
2012-12-31	196
2013-03-31	252
2013-06-30	174
2013-09-30	154
2013-12-31	177
2014-03-31	305
2014-06-30	171
2014-09-30	217
2014-12-31	685
2015-03-31	405
2015-06-30	425
2015-09-30	489
2015-12-31	1073
2016-03-31	331
2016-06-30	1198
2016-09-30	227
2016-12-31	113
2017-03-31	329
2017-06-30	166
2017-09-30	58
2017-12-31	351
2018-03-31	139
2018-06-30	102
2018-09-30	202
2018-12-31	198
2019-03-31	43
2019-06-30	70
2019-09-30	51
2019-12-31	83
2020-03-31	153
2020-06-30	80
2020-09-30	93
2020-12-31	90
2021-03-31	73
2021-06-30	70
2021-09-30	138
2021-12-31	-49
2022-03-31	29
2022-06-30	49
2022-09-30	88
2022-12-31	21
2023-03-31	65
2023-06-30	41
2023-09-30	59