Year % of GDP 1962 38.921096637915774 1963 38.02697841726611 1964 38.75093290834168 1965 39.49228869963494 1966 39.58929849068168 1967 40.420203940267605 1968 40.95302342695928 1969 40.79694120668243 1970 40.73852457922334 1971 39.79854542848945 1972 39.645403977337104 1973 37.38797962323716 1974 38.4586083548241 1975 38.40682843325139 1976 39.576024552830916 1977 39.08623279668589 1978 39.33596244830119 1979 39.342274583404865 1980 39.8928378347032 1981 41.11987063436842 1982 42.051856072940296 1983 43.20862147574242 1984 42.68311043214686 1985 43.20602996628551 1986 44.61700447867051 1987 43.95218745576962 1988 41.996959371668716 1989 41.418211076701226 1990 42.0634003827893 1991 41.35010534162502 1992 44.019205979907724 1993 44.08732884931227 1994 42.07225080233464 1995 41.548729287881 1996 42.56969935640112 1997 44.59497461192757 1998 44.67450515861979 1999 44.46925832307303 2000 44.90751311701046 2001 43.619860765046745 2002 41.36567079626241 2003 40.79161440480488 2004 41.01076902350078 2005 41.79862594930512 2006 43.63512106411598 2007 43.7732722238521 2008 43.333483123629655 2009 46.44383154371489 2010 45.349021766540524 2011 44.86447511270996 2012 48.14245609895143 2013 46.98151442050123 2014 47.115446711125095 2015 48.642300967210325 2016 47.62968837805023 2017 47.960699604967914 2018 48.87927446539653 2019 49.55860957399552 2020 48.154630046867545 2021 46.99224629155848 2022 47.74181349805141 2023 48.97779875181833