Year	Percent of GDP (Units)
1980	34.783
1981	40.036
1982	42.372
1983	41.023
1984	35.735
1985	29.813
1986	27.840
1987	24.755
1988	27.547
1989	30.402
1990	35.338
1991	37.843
1992	36.003
1993	39.613
1994	41.386
1995	43.523
1996	41.964
1997	43.377
1998	29.539
1999	25.658
2000	29.397
2001	26.838
2002	27.240
2003	25.532
2004	25.850
2005	23.122
2006	23.425
2007	23.966
2008	22.265
2009	18.407
2010	23.657
2011	23.456
2012	25.951
2013	26.108
2014	25.158
2015	25.424
2016	25.996
2017	25.547
2018	23.897
2019	21.048
2020	19.658
2021	22.107
2022	23.506
2023	25.830
2024	25.325
2025	25.903
2026	26.209
2027	26.365
2028	26.706
2029	26.845