Year	Percent of GDP (Units)
1980	20.748
1981	18.216
1982	17.345
1983	16.960
1984	16.305
1985	17.241
1986	16.215
1987	14.533
1988	15.567
1989	15.071
1990	15.472
1991	12.889
1992	12.410
1993	13.999
1994	13.989
1995	17.662
1996	15.051
1997	14.662
1998	14.170
1999	11.742
2000	12.459
2001	12.325
2002	17.631
2003	18.474
2004	19.350
2005	21.362
2006	21.471
2007	22.200
2008	21.064
2009	18.221
2010	17.323
2011	17.387
2012	16.133
2013	15.159
2014	15.634
2015	14.328
2016	14.950
2017	13.374
2018	11.449
2019	13.318
2020	17.296
2021	19.572
2022	17.454
2023	14.918
2024	18.008
2025	18.803
2026	19.896
2027	21.444
2028	22.331
2029	22.545