Quarter	US dollars
2004-12-31	161
2005-03-31	125
2005-06-30	81
2005-09-30	191
2005-12-31	149
2006-03-31	231
2006-06-30	18
2006-09-30	26
2006-12-31	108
2007-03-31	298
2007-06-30	556
2007-09-30	357
2007-12-31	285
2008-03-31	266
2008-06-30	410
2008-09-30	453
2008-12-31	142
2009-03-31	193
2009-06-30	580
2009-09-30	565
2009-12-31	773
2010-03-31	943
2010-06-30	664
2010-09-30	633
2010-12-31	701
2011-03-31	503
2011-06-30	438
2011-09-30	273
2011-12-31	94
2012-03-31	-6
2012-06-30	-80
2012-09-30	150
2012-12-31	65
2013-03-31	-46
2013-06-30	-152
2013-09-30	-15
2013-12-31	43
2014-03-31	102
2014-06-30	-89
2014-09-30	130
2014-12-31	453
2015-03-31	10
2015-06-30	96
2015-09-30	314
2015-12-31	99
2016-03-31	322
2016-06-30	361
2016-09-30	351
2016-12-31	305
2017-03-31	109
2017-06-30	477
2017-09-30	164
2017-12-31	197
2018-03-31	191
2018-06-30	636
2018-09-30	301
2018-12-31	134
2019-03-31	-1080
2019-06-30	-195
2019-09-30	-132
2019-12-31	-61
2020-03-31	105
2020-06-30	429
2020-09-30	317
2020-12-31	212
2021-03-31	796
2021-06-30	33
2021-09-30	-84
2021-12-31	-11
2022-03-31	-5
2022-06-30	-52
2022-09-30	97
2022-12-31	119
2023-03-31	-97
2023-06-30	-76
2023-09-30	37