Year	Percent of GDP (Units)
1989	20.289
1990	30.437
1991	34.080
1992	32.766
1993	32.844
1994	30.708
1995	27.581
1996	15.719
1997	22.197
1998	25.068
1999	28.752
2000	22.645
2001	29.078
2002	32.135
2003	27.013
2004	24.389
2005	22.125
2006	26.630
2007	28.582
2008	24.166
2009	24.433
2010	22.997
2011	27.873
2012	30.657
2013	42.392
2014	48.562
2015	41.288
2016	38.807
2017	26.600
2018	17.787
2019	20.153
2020	21.108
2021	20.935
2022	22.846
2023	22.962
2024	21.633
2025	22.239
2026	22.249
2027	21.256
2028	20.247
2029	19.054