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	493
2008-06-30	651
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	1538
2010-09-30	1060
2010-12-31	1049
2011-03-31	896
2011-06-30	1113
2011-09-30	1267
2011-12-31	1555
2012-03-31	861
2012-06-30	1082
2012-09-30	940
2012-12-31	707
2013-03-31	572
2013-06-30	347
2013-09-30	298
2013-12-31	345
2014-03-31	277
2014-06-30	224
2014-09-30	739
2014-12-31	638
2015-03-31	1170
2015-06-30	1093
2015-09-30	738
2015-12-31	378
2016-03-31	394
2016-06-30	502
2016-09-30	582
2016-12-31	316
2017-03-31	323
2017-06-30	498
2017-09-30	551
2017-12-31	535
2018-03-31	358
2018-06-30	151
2018-09-30	-27
2018-12-31	52
2019-03-31	388
2019-06-30	253
2019-09-30	259
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