Quarter	Millions of US Dollars
1995-10-01	63
1996-01-01	61
1996-04-01	59
1996-07-01	58
1996-10-01	56
1997-01-01	53
1997-04-01	57
1997-07-01	54
1997-10-01	50
1998-01-01	249
1998-04-01	1098
1998-07-01	1056
1998-10-01	1085
1999-01-01	1030
1999-04-01	1419
1999-07-01	1582
1999-10-01	1526
2000-01-01	1475
2000-04-01	1948
2000-07-01	1924
2000-10-01	1932
2001-01-01	1842
2001-04-01	1885
2001-07-01	1999
2001-10-01	1938
2002-01-01	1924
2002-04-01	2147
2002-07-01	2132
2002-10-01	1977
2003-01-01	2039
2003-04-01	1805
2003-07-01	1748
2003-10-01	2210
2004-01-01	2139
2004-04-01	2735
2004-07-01	2792
2004-10-01	3065
2005-01-01	2917
2005-04-01	1814
2005-07-01	1806
2005-10-01	1770
2006-01-01	3026
2006-04-01	3178
2006-07-01	3165
2006-10-01	3293
2007-01-01	3330
2007-04-01	4727
2007-07-01	4963
2007-10-01	5152
2008-01-01	5534
2008-04-01	5517
2008-07-01	5006
2008-10-01	4871
2009-01-01	4658
2009-04-01	7774
2009-07-01	8054
2009-10-01	7923
2010-01-01	7413
2010-04-01	7976
2010-07-01	8871
2010-10-01	8685
2011-01-01	11010
2011-04-01	12646
2011-07-01	11815
2011-10-01	11322
2012-01-01	11687
2012-04-01	14540
2012-07-01	14848
2012-10-01	15091
2013-01-01	14729
2013-04-01	17196
2013-07-01	17662
2013-10-01	17940
2014-01-01	18517
2014-04-01	17007
2014-07-01	15932
2014-10-01	14716
2015-01-01	12038
2015-04-01	12385
2015-07-01	12315
2015-10-01	12064
2016-01-01	11060
2016-04-01	10651
2016-07-01	10705
2016-10-01	10283
2017-01-01	10389
2017-04-01	9701
2017-07-01	9884
2017-10-01	9950
2018-01-01	10141
2018-04-01	9419