Year	Percent of GDP (Units)
1980	27.394
1981	23.319
1982	22.289
1983	19.437
1984	20.433
1985	19.655
1986	19.246
1987	20.309
1988	22.598
1989	24.330
1990	25.204
1991	23.637
1992	23.377
1993	22.684
1994	22.724
1995	21.790
1996	21.631
1997	22.301
1998	22.349
1999	22.689
2000	23.783
2001	22.634
2002	20.748
2003	20.964
2004	22.667
2005	23.681
2006	23.970
2007	24.603
2008	25.937
2009	22.173
2010	23.127
2011	24.507
2012	23.690
2013	22.428
2014	23.136
2015	23.628
2016	24.252
2017	24.456
2018	25.416
2019	25.009
2020	24.225
2021	25.732
2022	27.138
2023	25.219
2024	24.992
2025	25.050
2026	25.107
2027	25.122
2028	25.220
2029	25.280