Year % of GDP 1995 11.841543269205216 1996 10.941074706896249 1997 10.93701096476439 1998 11.038238448607794 1999 9.803726041365387 2000 9.642505858015394 2001 9.131290350637727 2002 8.71827517820692 2003 8.840174738622412 2004 8.29496221397081 2005 7.832112864488627 2006 7.081889723919896 2007 7.965973452511155 2008 6.684197643868056 2009 4.6524338858290095 2010 4.966250392221347 2011 4.869537955357552 2012 4.5566095414806576 2013 4.554388986511296 2014 4.728116420739367 2015 5.479631971332435 2016 5.794956339719771 2017 4.775908672940456 2018 4.961592227322811 2019 5.042530673884345 2020 4.942391674127813 2021 4.690487371211454 2022 3.8276980226753863 2023 3.5315500558053348