Year % of GDP per capita 2000 22.45057 2005 22.37694 2007 17.40456 2009 21.6279 2010 17.47394 2011 18.66055 2013 21.59453 2014 21.91968 2015 21.10035 2016 20.37058 2017 19.96642 2018 20.13922