Year	% of GDP
1999	13.115664463872008
2000	14.634568948161649
2001	15.430309898205973
2002	14.4809742726993
2003	14.528445059264973
2004	14.37243817536705
2007	17.369250940274505
2008	17.116196168281775
2009	15.312993553829202
2010	15.565411284325334
2011	16.052202100169097
2012	15.565888124453577
2013	15.42479120004047
2014	15.406303775075447
2015	14.35518617926396
2016	13.733651078078834
2017	14.046692719095542
2018	14.568969136891216
2019	14.140692293084985
2020	14.168398632026006
2021	14.8125651010191
2022	14.15438522276621