Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	196400513231.821
1997-04-01	213911866672.173
1997-07-01	205836098004.031
1997-10-01	227034785773.440
1998-01-01	206182861366.024
1998-04-01	217350296961.218
1998-07-01	212610252471.314
1998-10-01	230025382649.813
1999-01-01	203623063683.305
1999-04-01	206725024658.306
1999-07-01	212562919463.087
1999-10-01	230971458225.221
2000-01-01	219268437160.628
2000-04-01	222814717967.874
2000-07-01	219749977407.597
2000-10-01	235885455915.599
2001-01-01	235399661694.602
2001-04-01	226430839134.361
2001-07-01	223887023445.161
2001-10-01	236067056786.290
2002-01-01	223212553328.268
2002-04-01	246116424498.805
2002-07-01	257498114568.646
2002-10-01	273398472671.491
2003-01-01	272735373054.214
2003-04-01	288743326644.201
2003-07-01	288588045476.718
2003-10-01	323454307472.632
2004-01-01	333089136142.018
2004-04-01	344510063878.510
2004-07-01	343551108575.155
2004-10-01	387462325661.730
2005-01-01	367215305988.730
2005-04-01	386376793355.147
2005-07-01	378157317073.171
2005-10-01	390501902949.572
2006-01-01	399089013632.719
2006-04-01	432184004357.116
2006-07-01	439631218931.894
2006-10-01	485420070513.372
2007-01-01	477667598986.103
2007-04-01	508072256672.958
2007-07-01	522211732355.637
2007-10-01	577051152006.955
2008-01-01	588875848981.223
2008-04-01	640200468627.961
2008-07-01	606388083574.928
2008-10-01	500751247701.602
2009-01-01	402431154863.611
2009-04-01	430707671357.240
2009-07-01	470698040337.577
2009-10-01	513830666994.831
2010-01-01	485251383763.838
2010-04-01	493992968783.091
2010-07-01	522444319993.107
2010-10-01	574320228023.345
2011-01-01	584686232511.507
2011-04-01	632039435808.866
2011-07-01	628451075445.945
2011-10-01	624587712206.952
2012-01-01	608532086029.026
2012-04-01	614178670656.123
2012-07-01	599446923879.041
2012-10-01	636145094306.974