Year	% of GDP
1977	4.101843839705949
1978	18.25194660039015
1979	15.571023178961777
1980	5.228034771397694
1981	9.510942033066621
1982	23.34697992854851
1983	21.35578739528595
1984	24.763383315852938
1985	23.332844346714776
1986	23.87331825147537
1987	18.941357440732858
1988	19.717953632396622
1989	17.785848012525253
1990	16.18676864635798
1991	15.419138850183897
1992	11.066106478853843
1993	16.082269783436242
1994	18.038084644412503
1995	19.685051116412982
1996	16.40313792746961
1997	17.558221150989432
1998	17.335486835385186
1999	16.542379207019483
2000	14.381484724326207
2001	12.157824862208566
2002	11.911756137141154
2003	14.19098559445783
2004	16.917477451619206
2005	16.870375168375435
2006	19.320321960850723
2007	18.885963010274985
2008	17.516534908188667
2009	16.141050286347866
2010	15.298204014782387
2011	15.522766500326233
2012	15.116355428343912
2013	15.333808411121542
2014	15.224385841822915
2015	14.315693934272883
2016	16.456894132346882
2017	16.28938372494452
2018	15.707849859852752
2019	14.39992114792347
2020	13.348618765419678
2021	13.94515310517282
2022	14.184762931272044