Year % of GDP 1970 39.893604646249315 1971 39.546239749788135 1972 39.61972657167727 1973 41.89221443391877 1974 48.85884243536196 1975 44.85312377441782 1976 47.34731795859129 1977 47.4472274874115 1978 46.23650829020138 1979 49.25691669262201 1980 51.64389313231991 1981 54.16973787980566 1982 54.1023078684238 1983 53.99117339037055 1984 56.868704095054746 1985 57.35518484042183 1986 50.65306383218111 1987 50.0523694012473 1988 51.263632365134704 1989 54.024954890272454 1990 53.347234263611604 1991 53.53467892204914 1992 53.10476321763032 1993 51.719639777775036 1994 54.357755826841675 1995 57.0704821400045 1996 57.84699536678275 1997 61.975194572212516 1998 63.314653866576556 1999 64.19269955167341 2000 71.83849145124921 2001 71.0903531276041 2002 68.81893909296859 2003 67.85614493114099 2004 70.98886710860384 2005 74.28117051547535 2006 78.9570961388306 2007 80.87163552307956 2008 82.01404187789385 2009 71.71865935138237 2010 79.65472768396921 2011 85.0912066462038 2012 86.73937550504617 2013 86.23605979302822 2014 87.07625299622914 2015 88.39642993100459 2016 87.41666699549263 2017 90.45424724662206 2018 92.13631929947661 2019 92.26364876882441 2020 85.26974034912014 2021 93.00696333972107 2022 105.93658771608736 2023 97.17243433746981