Year	Percent of GDP (Units)
1980	24.068
1981	24.923
1982	23.475
1983	24.729
1984	23.081
1985	21.373
1986	22.254
1987	23.695
1988	24.845
1989	27.648
1990	23.658
1991	26.240
1992	25.938
1993	22.802
1994	22.955
1995	20.252
1996	21.173
1997	26.394
1998	25.398
1999	25.469
2000	23.783
2001	24.397
2002	25.711
2003	25.981
2004	24.852
2005	26.701
2006	26.074
2007	27.121
2008	28.319
2009	31.022
2010	31.053
2011	29.373
2012	26.340
2013	29.479
2014	30.430
2015	27.588
2016	27.052
2017	26.642
2018	26.289
2019	29.124
2020	32.703
2021	37.853
2022	37.501
2023	38.113
2024	36.193
2025	32.274
2026	28.593
2027	27.945
2028	27.669
2029	27.390