Quarter Percent Change 1987-04-01 6.035386831825260 1987-07-01 11.383764987545700 1987-10-01 15.330444245492700 1988-01-01 17.723489749640900 1988-04-01 17.680390277621500 1988-07-01 17.254891352652700 1988-10-01 16.618226475163500 1989-01-01 15.881515404844900 1989-04-01 16.878887253732700 1989-07-01 17.156930699331600 1989-10-01 16.962291424700300 1990-01-01 16.484100680226800 1990-04-01 17.325114325668900 1990-07-01 17.471831711712700 1990-10-01 17.175964853125500 1991-01-01 16.623462311991500 1991-04-01 14.773424744756600 1991-07-01 13.324404981367300 1991-10-01 12.157138348459500 1992-01-01 11.195467373574200 1992-04-01 10.895540149989000 1992-07-01 10.571037298881700 1992-10-01 10.235070930123500 1993-01-01 9.896792469258950 1993-04-01 11.994345044530900 1993-07-01 13.378492258258700 1993-10-01 14.153662139619800 1994-01-01 14.460747330191300 1994-04-01 12.496110443820200 1994-07-01 10.985638606894000 1994-10-01 9.787967713926230 1995-01-01 8.814886544253460 1995-04-01 15.538440433558700 1995-07-01 19.886084140764700 1995-10-01 21.957051887888700 1996-01-01 22.406757207056900 1996-04-01 23.519950687674000 1996-07-01 23.263236084832000 1996-10-01 22.297852036836800 1997-01-01 21.032989235860000 1997-04-01 15.910778329856500 1997-07-01 12.461014560141300 1997-10-01 9.954812212223230 1998-01-01 8.029959984607410 1998-04-01 15.310113782283600 1998-07-01 20.108506325269400 1998-10-01 22.429447570122100 1999-01-01 22.965834949754200 1999-04-01 17.148162642273900 1999-07-01 13.333309465107200 1999-10-01 10.613478497526900 2000-01-01 8.554355126156130 2000-04-01 9.014258719931610 2000-07-01 8.995354991542410 2000-10-01 9.809878573733380 2001-01-01 9.877821643879490 2001-04-01 9.196108449279030 2001-07-01 8.397245198297820 2001-10-01 7.406879306097100 2002-01-01 6.411644947147150 2002-04-01 5.850236890822120 2002-07-01 5.987048763683060 2002-10-01 6.042020230340570 2003-01-01 5.431212171289910 2003-04-01 5.022263637673780 2003-07-01 4.477055179314970 2003-10-01 3.761042927159430 2004-01-01 3.135758655619010 2004-04-01 1.934519973902200 2004-07-01 0.896428279660813 2004-10-01 0.749739417401488 2005-01-01 0.993270248742197 2005-04-01 0.763560017800548 2005-07-01 0.141564295577705 2005-10-01 0.147396674574330 2006-01-01 0.579843772844765 2006-04-01 1.356232623496030 2006-07-01 2.302146889964510 2006-10-01 2.347422742850030