Quarter	US dollars
2004-12-31	351
2005-03-31	357
2005-06-30	274
2005-09-30	501
2005-12-31	170
2006-03-31	304
2006-06-30	616
2006-09-30	258
2006-12-31	260
2007-03-31	492
2007-06-30	564
2007-09-30	538
2007-12-31	468
2008-03-31	509
2008-06-30	667
2008-09-30	1224
2008-12-31	394
2009-03-31	332
2009-06-30	263
2009-09-30	329
2009-12-31	845
2010-03-31	770
2010-06-30	1221
2010-09-30	1060
2010-12-31	1049
2011-03-31	896
2011-06-30	1114
2011-09-30	1267
2011-12-31	1555
2012-03-31	861
2012-06-30	1082
2012-09-30	667
2012-12-31	482
2013-03-31	498
2013-06-30	290
2013-09-30	266
2013-12-31	339
2014-03-31	263
2014-06-30	214
2014-09-30	712
2014-12-31	584
2015-03-31	1085
2015-06-30	988
2015-09-30	662
2015-12-31	296
2016-03-31	318
2016-06-30	419
2016-09-30	512
2016-12-31	229
2017-03-31	254
2017-06-30	433
2017-09-30	514
2017-12-31	527
2018-03-31	358
2018-06-30	151
2018-09-30	-27
2018-12-31	42
2019-03-31	379
2019-06-30	243
2019-09-30	253
2019-12-31	337
2020-03-31	296
2020-06-30	315
2020-09-30	221
2020-12-31	212
2021-03-31	155
2021-06-30	146
2021-09-30	84
2021-12-31	51
2022-03-31	11
2022-06-30	-5
2022-09-30	-32
2022-12-31	-9
2023-03-31	-3
2023-06-30	38
2023-09-30	40