Year	Percent of GDP (Units)
1980	12.784
1981	12.957
1982	15.406
1983	13.447
1984	18.351
1985	22.469
1986	23.419
1987	21.966
1988	20.889
1989	19.303
1990	19.398
1991	15.294
1992	15.662
1993	13.827
1994	15.878
1995	16.319
1996	15.394
1997	16.413
1998	19.078
1999	16.215
2000	16.128
2001	16.897
2002	14.700
2003	13.757
2004	15.304
2005	14.674
2006	16.953
2007	17.712
2008	16.233
2009	16.630
2010	16.610
2011	14.751
2012	14.749
2013	14.819
2014	14.507
2015	15.450
2016	16.752
2017	14.448
2018	15.378
2019	14.781
2020	15.151
2021	15.410
2022	14.533
2023	13.982
2024	14.106
2025	14.559
2026	14.772
2027	14.763
2028	15.128
2029	15.433