Year	Percent of GDP
1980	30.452
1981	37.074
1982	30.811
1983	33.883
1984	23.815
1985	21.945
1986	25.292
1987	22.808
1988	29.408
1989	16.755
1990	38.202
1991	24.655
1992	36.119
1993	32.389
1994	22.965
1995	-11.471
1996	0.466
1997	15.95
1998	-1.825
1999	17.392
2000	42.298
2001	25.038
2002	29.14
2003	40.322
2004	35.788
2005	27.641
2006	37.424
2007	6.655
2008	30.884
2009	13.276
2010	29.713
2011	39.8
2012	49.867
2013	48.238
2014	51.208
2015	3.134
2016	4.713
2017	25.748
2018	23.829
2019	27.244
2020	28.043
2021	26.17
2022	25.207
2023	26.029
2024	27.509
