Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	149000000
1980-04-01	184000000
1980-07-01	166000000
1980-10-01	221000000
1981-01-01	136000000
1981-04-01	178000000
1981-07-01	245000000
1981-10-01	211000000
1982-01-01	188000000
1982-04-01	191000000
1982-07-01	222000000
1982-10-01	194000000
1983-01-01	219000000
1983-04-01	199000000
1983-07-01	202000000
1983-10-01	203000000
1984-01-01	173000000
1984-04-01	203000000
1984-07-01	188000000
1984-10-01	227000000
1985-01-01	196000000
1985-04-01	222000000
1985-07-01	288000000
1985-10-01	291000000
1986-01-01	287000000
1986-04-01	350000000
1986-07-01	451000000
1986-10-01	387000000
1987-01-01	375000000
1987-04-01	466000000
1987-07-01	466000000
1987-10-01	623000000
1988-01-01	704000000
1988-04-01	624000000
1988-07-01	632000000
1988-10-01	591000000
1989-01-01	510000000
1989-04-01	535000000
1989-07-01	496000000
1989-10-01	556000000
1990-01-01	552000000
1990-04-01	567000000
1990-07-01	630000000
1990-10-01	706000000
1991-01-01	643000000
1991-04-01	694000000
1991-07-01	708000000
1991-10-01	792000000
1992-01-01	754000000
1992-04-01	854000000
1992-07-01	805000000
1992-10-01	825000000
1993-01-01	735000000
1993-04-01	878000000
1993-07-01	873000000
1993-10-01	896000000
1994-01-01	788000000
1994-04-01	811000000
1994-07-01	957000000
1994-10-01	1117000000
1995-01-01	1015000000
1995-04-01	1074000000
1995-07-01	986000000
1995-10-01	1029000000
1996-01-01	977000000
1996-04-01	1056000000
1996-07-01	1099000000
1996-10-01	1148000000
1997-01-01	1028000000
1997-04-01	1146000000
1997-07-01	1162000000
1997-10-01	1953000000
1998-01-01	2025000000
1998-04-01	1605000000
1998-07-01	1444000000
1998-10-01	1662000000
1999-01-01	1591000000
1999-04-01	1526000000
1999-07-01	1611000000
1999-10-01	1694000000
2000-01-01	1598000000
2000-04-01	1567000000
2000-07-01	1626000000
2000-10-01	1710000000
2001-01-01	1634000000
2001-04-01	1600000000
2001-07-01	1601000000
2001-10-01	1852000000
2002-01-01	1692000000
2002-04-01	1848000000
2002-07-01	1746000000
2002-10-01	2028000000
2003-01-01	1778000000
2003-04-01	1980000000
2003-07-01	1923000000
2003-10-01	2178000000
2004-01-01	2143000000
2004-04-01	2221000000
2004-07-01	2319000000
2004-10-01	2468000000
2005-01-01	2532000000
2005-04-01	2497000000
2005-07-01	2466000000
2005-10-01	2510000000
2006-01-01	2179000000
2006-04-01	2218000000
2006-07-01	2494000000
2006-10-01	2696000000
2007-01-01	2584000000
2007-04-01	2767000000
2007-07-01	2652000000
2007-10-01	3156000000
2008-01-01	3293000000
2008-04-01	3101000000
2008-07-01	3212000000
2008-10-01	4464000000
2009-01-01	3816000000
2009-04-01	2954000000
2009-07-01	2977000000
2009-10-01	2954000000
2010-01-01	2928000000
2010-04-01	3691000000
2010-07-01	3191000000
2010-10-01	3615000000
2011-01-01	3347000000
2011-04-01	3878000000
2011-07-01	3906000000
2011-10-01	3992000000
2012-01-01	3841000000
2012-04-01	3927000000
2012-07-01	4033000000
2012-10-01	4132000000
2013-01-01	3956000000
2013-04-01	4171000000
2013-07-01	4183000000
2013-10-01	4948000000