Year % of GDP 1994 6.466640634189659 1995 6.794856428006006 1996 6.18307844332752 1997 6.705154639175258 1998 6.088186928754446 1999 6.196850093429433 2000 6.237509607993851 2001 5.863118728154245 2002 5.662926018287615 2003 5.4863748967795205 2004 3.820910296334385 2005 3.5796350582256338 2006 4.469734858907345 2007 4.892766618290708 2008 4.521886179926451 2009 3.9508720861148316 2010 3.861959367519459 2011 3.804609707144669 2012 3.7645307770488157 2013 3.9553991560217048 2014 4.022805905178516 2015 3.2846632667094346 2016 2.727149457639454 2017 2.7929114852009094 2018 3.2318972830416333 2019 3.1690998515024513 2020 3.0782500056068893 2021 1.4001656148754456 2022 1.189573262952201 2023 1.0886659357200987