Quarter	US dollars
2004-12-31	38
2005-03-31	-17
2005-06-30	-63
2005-09-30	-39
2005-12-31	185
2006-03-31	26
2006-06-30	22
2006-09-30	-2
2006-12-31	35
2007-03-31	496
2007-06-30	624
2007-09-30	768
2007-12-31	812
2008-03-31	1155
2008-06-30	1522
2008-09-30	1206
2008-12-31	1162
2009-03-31	1114
2009-06-30	1390
2009-09-30	1599
2009-12-31	1376
2010-03-31	1238
2010-06-30	899
2010-09-30	1049
2010-12-31	1046
2011-03-31	979
2011-06-30	830
2011-09-30	877
2011-12-31	860
2012-03-31	217
2012-06-30	201
2012-09-30	223
2012-12-31	378
2013-03-31	316
2013-06-30	285
2013-09-30	313
2013-12-31	261
2014-03-31	158
2014-06-30	80
2014-09-30	143
2014-12-31	70
2015-03-31	56
2015-06-30	109
2015-09-30	98
2015-12-31	98
2016-03-31	116
2016-06-30	105
2016-09-30	99
2016-12-31	219
2017-03-31	118
2017-06-30	87
2017-09-30	89
2017-12-31	57
2018-03-31	58
2018-06-30	82
2018-09-30	90
2018-12-31	82
2019-03-31	78
2019-06-30	22
2019-09-30	-23
2019-12-31	-49
2020-03-31	-26
2020-06-30	-36
2020-09-30	-44
2020-12-31	-46
2021-03-31	-62
2021-06-30	-61
2021-09-30	23
2021-12-31	49
2022-03-31	-18
2022-06-30	168
2022-09-30	135
2022-12-31	164
2023-03-31	180
2023-06-30	474
2023-09-30	934