Quarter	Millions of US Dollars
1994-10-01	0
1995-01-01	0
1995-04-01	0
1995-07-01	0
1995-10-01	0
1996-01-01	0
1996-04-01	0
1996-07-01	0
1996-10-01	0
1997-01-01	0
1997-04-01	0
1997-07-01	0
1997-10-01	534
1998-01-01	534
1998-04-01	534
1998-07-01	534
1998-10-01	0
1999-01-01	0
1999-04-01	0
1999-07-01	250
1999-10-01	1227
2000-01-01	1225
2000-04-01	1515
2000-07-01	1374
2000-10-01	408
2001-01-01	427
2001-04-01	133
2001-07-01	50
2001-10-01	1595
2002-01-01	1350
2002-04-01	2462
2002-07-01	2437
2002-10-01	1505
2003-01-01	1505
2003-04-01	393
2003-07-01	393
2003-10-01	0
2004-01-01	0
2004-04-01	0
2004-07-01	0
2004-10-01	0
2005-01-01	0
2005-04-01	0
2005-07-01	602
2005-10-01	590
2006-01-01	605
2006-04-01	636
2006-07-01	300
2006-10-01	345
2007-01-01	1122
2007-04-01	1123
2007-07-01	825
2007-10-01	777
2008-01-01	2774
2008-04-01	3307
2008-07-01	3059
2008-10-01	3090
2009-01-01	1381
2009-04-01	1218
2009-07-01	1546
2009-10-01	2572
2010-01-01	3043
2010-04-01	2553
2010-07-01	2443
2010-10-01	1380
2011-01-01	1066
2011-04-01	2016
2011-07-01	3388
2011-10-01	3937
2012-01-01	8906
2012-04-01	7655
2012-07-01	6416
2012-10-01	4882
2013-01-01	3897
2013-04-01	5273
2013-07-01	6257
2013-10-01	6562
2014-01-01	2463
2014-04-01	2740
2014-07-01	2152
2014-10-01	2893
2015-01-01	6516
2015-04-01	5136
2015-07-01	6220
2015-10-01	4531
2016-01-01	4853
2016-04-01	5295
2016-07-01	3819
2016-10-01	3836
2017-01-01	974
2017-04-01	3858
2017-07-01	3920
2017-10-01	4198
2018-01-01	6383
2018-04-01	2696