Quarter	National Currency
1987-04-01	1278668905.70
1987-07-01	1377411712.40
1987-10-01	1405905281.80
1988-01-01	1319951694.50
1988-04-01	1305442199.10
1988-07-01	1326128270.70
1988-10-01	1336512051.10
1989-01-01	1244297885.40
1989-04-01	1419968332.10
1989-07-01	1369370572.40
1989-10-01	1422689061.70
1990-01-01	1208141303.00
1990-04-01	1245702816.80
1990-07-01	1110402476.10
1990-10-01	1187022166.20
1991-01-01	1042682266.30
1991-04-01	1012766987.10
1991-07-01	925657365.66
1991-10-01	972444405.91
1992-01-01	956837348.80
1992-04-01	971131849.24
1992-07-01	923053677.39
1992-10-01	989394510.25
1993-01-01	907566709.94
1993-04-01	1041553140.80
1993-07-01	1080615529.80
1993-10-01	1091050755.70
1994-01-01	937665183.24
1994-04-01	1150833843.30
1994-07-01	1170280871.50
1994-10-01	1202696537.20
1995-01-01	1125886593.20
1995-04-01	1285634760.50
1995-07-01	1216709141.50
1995-10-01	1281792661.60
1996-01-01	1180599457.70
1996-04-01	1373307865.60
1996-07-01	1378743083.40
1996-10-01	1449093238.70
1997-01-01	1333470142.90
1997-04-01	1459553661.50
1997-07-01	1501098105.30
1997-10-01	1455503596.70
1998-01-01	1278572216.50
1998-04-01	1384984442.30
1998-07-01	1267885006.80
1998-10-01	1369253102.40
1999-01-01	1235410087.50
1999-04-01	1407130503.40
1999-07-01	1520330942.20
1999-10-01	1615309506.70
2000-01-01	1616669746.50
2000-04-01	1498412885.50
2000-07-01	1507533356.20
2000-10-01	1473739175.80
2001-01-01	1281335790.90
2001-04-01	1478897375.70
2001-07-01	1501024036.40
2001-10-01	1645401758.70
2002-01-01	1406354348.70
2002-04-01	1571644720.20
2002-07-01	1770659315.70
2002-10-01	1825306519.40
2003-01-01	1652390248.10
2003-04-01	1800484675.90
2003-07-01	1996182765.90
2003-10-01	1963897492.20
2004-01-01	1775125488.80
2004-04-01	2030438482.10
2004-07-01	2091468914.00
2004-10-01	2028413479.90
2005-01-01	1877670466.30
2005-04-01	2151415760.80
2005-07-01	2159511723.50
2005-10-01	2143746971.60
2006-01-01	2018325544.10
2006-04-01	2060134405.80
2006-07-01	2117808923.20
2006-10-01	2102953257.90
2007-01-01	1966169735.50
2007-04-01	2124738711.00
2007-07-01	2219647479.80
2007-10-01	2246996225.50
2008-01-01	1963696392.10
2008-04-01	2002818176.00
2008-07-01	2043213936.90
2008-10-01	1922391324.50
2009-01-01	1793743117.40
2009-04-01	1837960809.00
2009-07-01	1804177229.40
2009-10-01	1813286687.20
2010-01-01	1696297138.20
2010-04-01	1917286734.40
2010-07-01	1896487713.60
2010-10-01	1908187162.80
2011-01-01	1691097383.00
2011-04-01	1736595241.00
2011-07-01	1713196342.60