Year % of GDP 1981 51.94868569250814 1982 53.78319992901274 1983 60.85396500431452 1984 67.22033906312211 1985 64.81594082770923 1986 76.3114435406104 1987 80.07016302022109 1988 81.35521511059548 1989 82.91717239974197 1990 85.38282233884757 1991 85.06772219057231 1992 84.65271927470826 1993 87.64414989481945 1994 80.57046766990148 1995 71.6693185664084 1996 65.59393147289236 1997 65.54939080485318 1998 64.16348704982757 1999 88.4646124553612 2000 88.35141707926434 2001 87.64422416473377 2002 84.1046920069964 2003 82.91403097491322 2004 80.47752819775069 2005 79.21240395829936 2006 75.3792675577385 2007 75.4653548991926 2008 75.49649011420287 2009 77.90474280687495 2010 73.84670171248183 2011 74.68390670588533 2012 75.70256372593806 2013 73.80107087523919 2014 72.99338868728428 2015 77.1161719085573 2016 80.1522785453182 2017 81.50918943627318 2018 81.29311646909639 2019 79.38519801873676 2020 79.91553746858928 2021 82.57371015580324 2022 84.0238928324809 2023 86.90229305956878