Year % of GDP 1976 0.08385802407580689 1977 0.07697500844609206 1978 0.07166100723290453 1979 0.059577317019539985 1980 0.04436007157132997 1981 0.08874899967223332 1982 0.0374225059859823 1983 0.08315405820216278 1984 0.23739358818440345 1985 0.17090852624633998 1986 0.19049419961867184 1987 0.26628898430279335 1988 0.3668140739686466 1989 0.532386620051828 1990 0.9624654089746285 1991 0.9453105990522443 1992 0.9013355574268358 1993 0.9305551783077866 1994 0.7435159481603654 1995 0.5086943492667114 1996 0.44835829008561595 1997 0.5409053664859217 1998 0.34021890229342466 1999 0.34651886277944527 2000 0.39613952463395263 2001 0.477799888686285 2002 0.6950842957189695 2003 0.42855468297814053 2004 0.4409623076863615 2005 0.39027554104754436 2006 0.4597042999268229 2007 0.508087550145978 2008 0.6646292210924961 2009 0.7149578228871637 2010 0.9857964878364274 2011 0.9914873502653755 2012 1.047579610457584 2013 1.2858297042874045 2014 1.2185606405830642 2015 1.238448086755525 2016 1.0055326462272138 2017 0.7619531497364558 2018 0.6640087944032077 2019 0.7514623274650342 2020 0.7736250582711679 2021 0.7376025951022311 2022 0.666745907669812 2023 0.6645354474174681