Year % GDP 1960 14.066325584138479 1961 14.76197114917794 1962 11.939378631570568 1963 19.317722392904464 1964 29.824301496403322 1965 24.291713574464005 1966 23.45581029174928 1967 22.935216844911523 1968 23.04891990331187 1969 24.20575179494727 1970 26.617934501499057 1971 29.29002530822985 1972 36.02859365100057 1973 33.34469507162595 1974 26.81792312969225 1975 28.5300504448605 1976 22.27148442080394 1977 25.94717937282284 1978 23.436369195726712 1979 15.344132602608576 1980 10.543337760605802 1981 6.915891462510798 1982 1.1443275668973927 1983 0.4589473952582762 1984 -4.010616182841107 1985 -5.768143724653236 1986 2.3137450529216634 1987 -4.189167310727326 1988 -2.150316909592479 1989 34.28221888423655 1990 34.10788632986138 1991 35.675130512241815 1992 31.321034488704054 1993 26.110628670514906 1994 23.93976319768786 1995 23.43694448256988 1996 22.743288971943738 1997 19.278630185197258 1998 15.463828507817237 1999 15.59575769750539 2000 18.912126515410446 2001 20.081628369527596 2002 16.52789161706758 2003 16.780075183731437 2004 19.4611181264397 2005 18.334190705716573 2006 17.42554562790904 2007 16.74000314542533 2008 15.342040895297169 2009 17.667802832032493 2010 20.431671656635906 2011 20.821796196936013 2012 8.352234152424362 2013 11.328165719747279 2014 9.701537788686727 2015 12.319123259750732 2016 15.119021631260482 2017 16.158173611525203 2018 18.112639138474687 2019 19.684576051024756 2020 26.091683701329888