Year	Percent of GDP
2001	17.018
2002	17.541
2003	18.43
2004	16.004
2005	16.225
2006	14.773
2007	12.663
2008	15.769
2009	19.617
2010	17.2
2011	15.239
2012	15.247
2013	11.271
2014	12.994
2015	17.812
2016	18.715
2017	18.582
2018	18.139
2019	17.83
2020	17.93
2021	18.03
2022	18.13
2023	18.23
2024	18.33