Year % of GDP 1960 32.41379310344827 1961 28.97727272727273 1962 25.773195876288657 1963 24.034334763948497 1964 23.283582089552237 1965 29.87249544626594 1966 28.615384615384613 1967 27.787716159809182 1968 27.388362652232743 1969 25.528062764031382 1970 29.094339622641506 1971 21.717897155989657 1972 30.33040784718637 1973 19.923484402589757 1974 31.27281631199359 1975 37.0585261028947 1976 39.63817419163061 1977 42.55498313240409 1978 40.00155530986168 1979 38.000124359327394 1980 35.664396338553644 1981 34.23545887562056 1982 31.61665881546155 1983 49.292739245702556 1984 47.9560746008794 1985 47.85656984323295 1986 46.48374022543683 1987 40.85464499028607 1988 39.793813172605816 1989 41.19356188208103 1990 41.628472119091406 1991 38.55490474070918 1992 40.07304362925287 1993 38.68496675895845 1994 40.148833719520326 1995 38.097674842528654 1996 39.52843645528886 1997 37.706397080706985 1998 35.64001540069561 1999 33.386448946902654 2000 36.713738150790235 2001 36.30951264350566 2002 40.029067307559956 2003 51.75919958264724 2004 61.4766880860242 2005 58.877696325577446 2006 61.971574516587594 2007 59.210447837409454 2008 65.20809500718208 2009 53.394419268373575 2010 51.699037201225615 2011 53.24703401090185 2012 55.06115416337678 2013 49.71784647462325 2014 49.0876240632174 2015 45.32824080875339 2016 48.47053395330019 2017 46.377955987672664 2018 47.791465081333534 2019 49.40451157742108 2020 46.6861478026171 2021 56.82373810938598 2022 58.833617710689836 2023 51.73348816143051