Quarter	US dollars
2004-12-31	-81
2005-03-31	-93
2005-06-30	-99
2005-09-30	-117
2005-12-31	-139
2006-03-31	-114
2006-06-30	-129
2006-09-30	-123
2006-12-31	311
2007-03-31	-33
2007-06-30	-6
2007-09-30	31
2007-12-31	-70
2008-03-31	-34
2008-06-30	-28
2008-09-30	-48
2008-12-31	-279
2009-03-31	-297
2009-06-30	-199
2009-09-30	-237
2009-12-31	-254
2010-03-31	-190
2010-06-30	-304
2010-09-30	71
2010-12-31	286
2011-03-31	-205
2011-06-30	-217
2011-09-30	-237
2011-12-31	-257
2012-03-31	-219
2012-06-30	-344
2012-09-30	-205
2012-12-31	178
2013-03-31	214
2013-06-30	218
2013-09-30	633
2013-12-31	661
2014-03-31	600
2014-06-30	672
2014-09-30	631
2014-12-31	493
2015-03-31	55
2015-06-30	-82
2015-09-30	203
2015-12-31	298
2016-03-31	73
2016-06-30	419
2016-09-30	218
2016-12-31	224
2017-03-31	225
2017-06-30	-1117
2017-09-30	-1254
2017-12-31	-1098
2018-03-31	-1082
2018-06-30	-912
2018-09-30	-934
2018-12-31	-977
2019-03-31	-984
2019-06-30	-1053
2019-09-30	-1275
2019-12-31	-1411
2020-03-31	-1425
2020-06-30	-1633
2020-09-30	-1242
2020-12-31	-996
2021-03-31	-1152
2021-06-30	-1216
2021-09-30	-1281
2021-12-31	-1354
2022-03-31	-1780
2022-06-30	-1979
2022-09-30	-1774
2022-12-31	-2009
2023-03-31	-1944
2023-06-30	-1490
2023-09-30	-1423