Year % GDP 1960 29.642515771363026 1961 28.301818836664864 1962 43.58824137574525 1963 42.37425198123888 1964 41.702998487409914 1965 41.57179783314084 1966 40.80358984939137 1967 46.45263671875 1968 47.0445434298441 1969 26.401796937787207 1970 42.13329415437733 1971 39.732172198488335 1972 37.59367561054457 1973 37.88202661780797 1974 37.25888209745642 1975 37.16254552775592 1976 31.33796832753959 1977 24.16122957776363 1978 22.7302569606595 1979 19.953881703675474 1980 19.394315849228907 1981 4.627162420796402 1982 4.875616490397335 1983 4.179244027108275 1984 3.2437324540418393 1985 4.471070239815765 1986 3.1500495965255624 1987 2.6052438235390873 1988 1.5959473958852464 1989 2.9513937921879854 1990 4.21132646713434 1991 3.6626921782933057 1992 2.5963669904934763 1993 2.492179265091122 1994 5.412804148170414 1995 4.930944009767035 1996 4.920916974086613 1997 4.008474887377347 1998 2.5226814995678524 1999 2.6784618805883165 2000 0.4967513118304577 2001 1.016983165159427 2002 1.8943479271704218 2003 1.1907013559198114 2004 1.7670759248380317 2005 1.5237901868026358 2006 0.18817449006071854 2007 -0.34571229356800337 2008 0.2873368473895582 2009 13.221059699905668 2010 17.321450205246578 2011 23.057568964888098 2012 27.779677632900864 2013 27.081405554517023 2014 28.65934361978847 2015 27.51732238392737 2016 30.669672557107315 2017 28.855999715723833 2018 27.018209323589975 2019 27.22849196547237 2020 42.875119755470735 2021 43.19692970339467 2022 28.882182267144085 2023 25.451903961988485