Quarter	US dollars
2004-12-31	545
2005-03-31	647
2005-06-30	593
2005-09-30	483
2005-12-31	501
2006-03-31	496
2006-06-30	557
2006-09-30	458
2006-12-31	419
2007-03-31	535
2007-06-30	522
2007-09-30	701
2007-12-31	625
2008-03-31	958
2008-06-30	1315
2008-09-30	1362
2008-12-31	827
2009-03-31	1076
2009-06-30	1046
2009-09-30	1857
2009-12-31	783
2010-03-31	746
2010-06-30	1596
2010-09-30	1429
2010-12-31	1155
2011-03-31	1441
2011-06-30	918
2011-09-30	791
2011-12-31	677
2012-03-31	927
2012-06-30	813
2012-09-30	911
2012-12-31	745
2013-03-31	633
2013-06-30	828
2013-09-30	826
2013-12-31	942
2014-03-31	1172
2014-06-30	829
2014-09-30	932
2014-12-31	716
2015-03-31	655
2015-06-30	631
2015-09-30	604
2015-12-31	477
2016-03-31	715
2016-06-30	643
2016-09-30	650
2016-12-31	498
2017-03-31	479
2017-06-30	491
2017-09-30	495
2017-12-31	389
2018-03-31	218
2018-06-30	463
2018-09-30	464
2018-12-31	363
2019-03-31	378
2019-06-30	206
2019-09-30	322
2019-12-31	226
2020-03-31	190
2020-06-30	137
2020-09-30	71
2020-12-31	61
2021-03-31	50
2021-06-30	51
2021-09-30	62
2021-12-31	36
2022-03-31	37
2022-06-30	2
2022-09-30	3
2022-12-31	-179
2023-03-31	0
2023-06-30	0
2023-09-30	0