Year	% of GDP
1996	0.330879986286163
1997	0.342400014400482
1998	0.353839993476868
1999	0.287690013647079
2000	0.215299993753433
2001	0.238480001688004
2002	0.185739994049072
2003	0.217600002884865
2004	0.244200006127357
2005	0.176579996943474
2013	0.0785600021481514
2014	0.173179998993874
2015	0.299279987812042
2016	0.285860002040863
2017	0.270229995250702
2018	0.280519992113113
2019	0.284680008888245
2020	0.300799995660782
2021	0.251740008592606
2022	0.238319993019104