Year	% of GDP
1997	9.032947116585797
1998	13.478274788936362
1999	12.566385038009564
2000	15.277017673783682
2001	16.579989494839673
2002	23.745960218891852
2003	24.073558079220064
2004	28.118176938778
2005	21.81625590794229
2006	38.45326278796916
2007	60.04031687812225
2008	21.15365911438038
2009	24.009222535634247
2010	19.55754857616024
2011	12.263252110288185
2012	13.901152367656072
2013	14.72339817881905
2014	15.039566294716126
2015	13.999858856586329
2016	11.755227245251593
2017	13.003616025808345
2018	13.41233668544756
2019	14.568463715858687
2020	15.722758707672687
2021	17.42469090699128
2022	13.604390915704858
