Year	Percent of GDP (Units)
1980	28.524
1981	31.734
1982	23.836
1983	20.305
1984	24.828
1985	25.388
1986	24.076
1987	20.738
1988	14.416
1989	14.248
1990	19.222
1991	17.617
1992	22.593
1993	16.916
1994	12.392
1995	15.061
1996	14.207
1997	16.662
1998	14.899
1999	12.532
2000	12.122
2001	11.019
2002	9.460
2003	9.371
2004	10.313
2005	15.568
2006	16.163
2007	16.019
2008	14.700
2009	12.845
2010	13.087
2011	15.244
2012	13.549
2013	12.123
2014	12.476
2015	10.347
2016	11.407
2017	13.090
2018	12.895
2019	13.400
2020	9.045
2021	8.857
2022	9.963
2023	14.302
2024	17.072
2025	11.331
2026	8.832
2027	7.428
2028	6.092
2029	6.144