Year % of GDP 1995 3.499568529537271 1996 3.4008265246611082 1997 3.3174419991118906 1998 3.2584738970768217 1999 2.9752789509264423 2000 2.725018343836295 2001 2.6961385258533657 2002 3.4992548463606132 2003 3.5290132212895404 2004 3.3598889350022283 2005 3.155654304585435 2006 3.014521496375514 2007 2.867550068331923 2008 2.8237904402283207 2009 3.077583830688278 2010 2.9700377206698816 2011 2.934731416159668 2012 2.8738749430559363 2013 2.9470600853787143 2014 2.744127359262047 2015 2.7887235866071443 2016 2.7964690990919694 2017 2.902865043711543 2018 2.933635664312657 2019 3.00327502530917 2020 3.166123208187964 2021 2.8339083860800143 2022 2.722655446174695 2023 2.7245299896641444