Year	Percent of GDP
1988	36.007
1989	26.4
1990	26.555
1991	29.772
1992	26.034
1993	27.519
1994	26.46
1995	26.904
1996	27.701
1997	27.526
1998	25.423
1999	23.923
2000	24.262
2001	25.839
2002	24.364
2003	25.359
2004	25.256
2005	30.373
2006	34.275
2007	30.018
2008	33.9
2009	28.515
2010	31.657
2011	29.713
2012	29.759
2013	30.525
2014	30.576
2015	28.623
2016	23.009
2017	22.032
2018	26.027
2019	28.739
2020	29.386
2021	29.327
2022	29.125
2023	28.892
2024	28.683