Year % of GDP 1992 2.80552005767822 1998 3.41966009140015 1999 3.08122992515564 2000 3.82709002494812 2010 3.07808995246887 2011 2.987459897995 2012 3.01340007781982 2013 3.02971005439758 2014 2.66667008399963 2015 2.82399988174438 2016 2.66799998283386 2017 3.55599999427795 2018 3.07200002670288 2019 2.87400007247925 2020 3.3989999294281 2021 2.70099997520447 2022 2.20799994468689