Year % of GDP 1990 25.240881607177684 1991 24.983081872642558 1992 21.7954061094009 1993 23.18526432577921 1994 22.556714825597165 1995 22.686570778245922 1996 24.546131543703183 1997 25.181789931634558 1998 21.833384591726894 1999 22.87074375297343 2000 24.225569547443456 2001 26.203639756451814 2002 22.46746171335421 2014 19.26719914559533 2015 16.93324069206204 2016 13.923287100503693 2017 13.906441828532955 2018 15.427478035067274 2019 14.198648820142012 2020 12.928981394470096 2021 12.84839787740851 2022 15.34154852293451