Quarter	US dollars
2004-12-31	10
2005-03-31	19
2005-06-30	-22
2005-09-30	-7
2005-12-31	-953
2006-03-31	-1398
2006-06-30	-1352
2006-09-30	-1300
2006-12-31	-1425
2007-03-31	-1249
2007-06-30	-1224
2007-09-30	-1202
2007-12-31	-1007
2008-03-31	-328
2008-06-30	430
2008-09-30	818
2008-12-31	752
2009-03-31	741
2009-06-30	1149
2009-09-30	1641
2009-12-31	1327
2010-03-31	1350
2010-06-30	1296
2010-09-30	1719
2010-12-31	1819
2011-03-31	1815
2011-06-30	1556
2011-09-30	2164
2011-12-31	2223
2012-03-31	-408
2012-06-30	-315
2012-09-30	-368
2012-12-31	-152
2013-03-31	-150
2013-06-30	-190
2013-09-30	-196
2013-12-31	-241
2014-03-31	-100
2014-06-30	-239
2014-09-30	92
2014-12-31	211
2015-03-31	6
2015-06-30	69
2015-09-30	76
2015-12-31	113
2016-03-31	95
2016-06-30	97
2016-09-30	43
2016-12-31	23
2017-03-31	9
2017-06-30	-4
2017-09-30	-13
2017-12-31	-15
2018-03-31	-210
2018-06-30	-240
2018-09-30	-203
2018-12-31	-174
2019-03-31	-175
2019-06-30	-227
2019-09-30	-223
2019-12-31	-223
2020-03-31	-223
2020-06-30	-201
2020-09-30	-101
2020-12-31	-78
2021-03-31	-68
2021-06-30	-30
2021-09-30	-54
2021-12-31	-74
2022-03-31	-58
2022-06-30	39
2022-09-30	25
2022-12-31	58
2023-03-31	-56
2023-06-30	-719
2023-09-30	-935