Year % GDP 1967 28.80249783288132 1968 21.549646779492885 1969 22.926704573720823 1970 21.085616305750044 1971 20.53047958444975 1972 19.1273720093916 1973 20.819172374167916 1974 22.862606969093243 1975 18.487125806107187 1976 16.046277534811278 1977 18.300933189716716 1978 18.446486132913297 1979 16.219378242495218 1980 15.047460908740865 1981 14.490260609666224 1982 17.325891840768122 1983 18.474473690306002 1984 7.573998391205822 1985 6.973851572085353 1986 6.955557686018383 1987 6.489941495409594 1988 4.705617351501385 1989 3.5515969373354843 1990 0.787507099454632 1991 0.15052772431975311 1992 -0.4226859516871866 1993 0.552358982337039 1994 2.8192475808783386 1995 0.3772129958447009 1996 -2.5046197809938824 1997 -1.4227190335181505 1998 -1.5141413927154068 1999 -1.0480317663193506 2000 -1.7805320173983272 2001 0.6177814059352977 2002 -0.10978507046779636 2003 -2.1070146388301656 2004 -1.7251372308849804 2005 -0.8409519014102678 2006 -3.7698067910495956 2007 -3.3641080787692297 2008 -3.1553955398232034 2009 -5.9613362031312045 2010 -4.424155762980061 2011 -2.0713589475318868 2012 -0.15089175378914294 2013 -1.3632405319116405 2014 -0.9396762121071347 2015 -0.360705550002646 2016 2.497832829594624 2017 3.6236176168447147 2018 5.593834304466231 2019 4.988404911348876 2020 5.44647673054711 2021 7.0816254585752345 2022 11.504032953572613 2023 14.327657603149579