Year Index 2010=1, Trend 1970-01-01 0.364949764366292 1971-01-01 0.384995292949084 1972-01-01 0.401859612697811 1973-01-01 0.427679194018088 1974-01-01 0.496210209960922 1975-01-01 0.564804421743515 1976-01-01 0.595581768294495 1977-01-01 0.639119532670646 1978-01-01 0.682054305162529 1979-01-01 0.727306011485860 1980-01-01 0.806163307957361 1981-01-01 0.861431290073305 1982-01-01 0.921183511065479 1983-01-01 0.931169352768178 1984-01-01 0.943383536639673 1985-01-01 0.957126088847395 1986-01-01 1.000013126312410 1987-01-01 0.996552560262500 1988-01-01 0.994104887115268 1989-01-01 1.022988155311020 1990-01-01 1.047967853215430 1991-01-01 1.086279670093790 1992-01-01 1.119216353522980 1993-01-01 1.135276146816440 1994-01-01 1.118002746206740 1995-01-01 1.096448450866610 1996-01-01 1.090322236311100 1997-01-01 1.079993634012570 1998-01-01 1.082983718911810 1999-01-01 1.068226365446880 2000-01-01 1.057696828896350 2001-01-01 1.081526206564370 2002-01-01 1.059408201716670 2003-01-01 1.043352150351570 2004-01-01 0.996982754261959 2005-01-01 0.977381317719536 2006-01-01 0.971376201778259 2007-01-01 0.956628235304905 2008-01-01 0.994266394445113 2009-01-01 1.027957519568550 2010-01-01 0.999999999996463