Year % of GDP 1994 3.44697999954224 1995 3.81464004516602 1996 3.08350992202759 1997 3.37947010993958 1998 3.53697991371155 1999 3.59293007850647 2000 3.4301700592041 2001 3.45869994163513 2002 3.11779999732971 2003 3.13823008537292 2004 3.22751998901367 2005 3.28154993057251 2006 3.1914598941803 2007 3.27592992782593 2008 3.50922608375549 2010 3.41307497024536 2011 3.24000835418701 2012 3.30906105041504 2013 3.53929996490479 2014 3.21696710586548 2015 3.43796992301941 2016 3.96209001541138 2017 3.61172008514404 2018 3.15294480323792 2019 3.91623997688293 2020 3.3422999382019 2021 3.02255988121033 2022 2.74931001663208