Quarter	US Dollars, Sum Over Component Sub-periods
1998-01-01	57999999.99999999
1998-04-01	204999999.99999997
1998-07-01	117000000.00000000
1998-10-01	5205000000.00000000
1999-01-01	1365000000.00000000
1999-04-01	1391000000.00000000
1999-07-01	1425000000.00000000
1999-10-01	4149000000.00000000
2000-01-01	1752000000.00000000
2000-04-01	2066000000.00000000
2000-07-01	2633000000.00000000
2000-10-01	6100000000.00000000
2001-01-01	2594000000.00000000
2001-04-01	2344000000.00000000
2001-07-01	2175000000.00000000
2001-10-01	2276000000.00000000
2002-01-01	1836000000.00000000
2002-04-01	2511000000.00000000
2002-07-01	2135000000.00000020
2002-10-01	1863000000.00000000
2003-01-01	3760000000.00000000
2003-04-01	3603000000.00000000
2003-07-01	3460000000.00000000
2003-10-01	5272000000.00000000
2004-01-01	4800000000.00000000
2004-04-01	4693000000.00000000
2004-07-01	5207000000.00000000
2004-10-01	5858000000.00000000
2005-01-01	7493000000.00000100
2005-04-01	8087000000.00000000
2005-07-01	8456000000.00000000
2005-10-01	15237000000.00000000
2006-01-01	10954000000.00000000
2006-04-01	12454000000.00000000
2006-07-01	13211000000.00000200
2006-10-01	17944000000.00000000
2007-01-01	15108000000.00000200
2007-04-01	17627000000.00000000
2007-07-01	22492000000.00000000
2007-10-01	28249000000.00000000
2008-01-01	29066000000.00000400
2008-04-01	30991000000.00000400
2008-07-01	26761000000.00000000
2008-10-01	24969000000.00000000
2009-01-01	21381000000.00000000
2009-04-01	25762000000.00000000
2009-07-01	25103000000.00000000
2009-10-01	36005000000.00000000
2010-01-01	29450000000.00000000
2010-04-01	28752000000.00000000
2010-07-01	43095000000.00000000
2010-10-01	41127000000.00000000
2011-01-01	35500000000.00000000
2011-04-01	37700000000.00000000
2011-07-01	25900000000.00000000
2011-10-01	45100000000.00000000
2012-01-01	59600000000.00000000
2012-04-01	30600000000.00000000
2012-07-01	46200000000.00000000
2012-10-01	24100000000.00000000
2013-01-01	54100000000.00000000
2013-04-01	45000000000.00000000