Year % GDP 2001 32.841293374427664 2002 28.74997392554012 2003 25.545501034494283 2004 22.25627207358541 2005 20.946169109811198 2006 18.551352215813242 2007 13.568811261545857 2008 12.3408248804312 2009 15.703974453405866 2010 16.171995326321714 2011 17.901799037045194 2012 17.40429914233118 2013 15.352270413357768 2014 13.965146191110595 2015 16.086339042777396 2016 18.772787630732786 2017 21.16615634958851 2018 21.20678846770835 2019 19.0794946563042 2020 25.945465189197265 2021 26.959744219790842 2022 25.08328466077255 2023 23.349111824906803