Year Growth Rate Same Period Previous Year 1971-01-01 11.972570922966300 1972-01-01 12.881467716976100 1973-01-01 20.032367164509700 1974-01-01 39.679977097286000 1975-01-01 39.306734224561100 1976-01-01 31.310865267313500 1977-01-01 34.616716871162500 1978-01-01 50.550938232593200 1979-01-01 78.310024532916600 1980-01-01 131.024998340780000 1981-01-01 116.800007902863000 1982-01-01 120.364391998424000 1983-01-01 145.951508617060000 1984-01-01 373.215653839258000 1985-01-01 304.584168188521000 1986-01-01 48.133333299364700 1987-01-01 19.852610267990900 1988-01-01 16.258333357201000 1989-01-01 20.249444430677200 1990-01-01 17.173342970624300 1991-01-01 19.005952073022200 1992-01-01 11.948018631667000 1993-01-01 10.943943768230500 1994-01-01 12.349999982403900 1995-01-01 10.043020349016900 1996-01-01 11.276624410816100 1997-01-01 9.001150872129290 1998-01-01 5.434843028750130 1999-01-01 5.199999995436600 2000-01-01 1.124841581772670 2001-01-01 1.100000000809790 2002-01-01 5.687438182193100 2003-01-01 0.716666681009610 2004-01-01 -0.413701822365459 2005-01-01 1.329345300359290 2006-01-01 2.107248291506480 2007-01-01 0.491666662497126 2008-01-01 4.594079101063810 2009-01-01 3.325000000049300 2010-01-01 2.693765636980020 2011-01-01 3.458333336504130 2012-01-01 1.707611723024160 2013-01-01 1.550000126100840 2014-01-01 0.475955840152706 2015-01-01 -0.599999935385330 2016-01-01 -0.544936346826162 2017-01-01 0.242232227861504