Year % of GDP 1978 27.428632703416874 1979 33.06415058361248 1980 35.327628012869475 1981 31.530982558965885 1982 26.996594746820136 1983 27.02600813856983 1984 26.92780044468425 1985 25.48618781366358 1986 32.308204437447976 1987 36.56439416756105 1988 32.77535313519438 1989 33.61782199610231 1990 31.87568375475743 1991 31.573745712458557 1992 37.32944249013963 1993 37.43063011784796 1994 40.780314275477295 1995 40.9847401608026 1996 46.72856472481062 1997 51.00854118298571 1998 49.88451282254623 1999 48.75443153165107 2000 46.73237723221994 2001 48.69656099484377 2002 48.48325651977549 2003 49.1284727544327 2004 47.42726815326755 2005 47.56770792042315 2006 45.19115622522907 2007 46.39708813145143 2008 42.21407861475801 2009 41.70868967470825 2010 42.08305253079894 2011 41.153641317177495 2012 43.34039665931408 2013 43.57849729201062 2014 43.56606932250059 2015 45.6992520039834 2016 49.02893733125718 2017 45.92388227715846 2018 47.0663097685339 2019 45.55423118050558 2020 25.13347971646941 2021 22.880964070744884 2022 39.151684326296326 2023 42.990860637225964