Year	Percent of GDP (Units)
1980	44.900
1981	41.961
1982	46.984
1983	40.583
1984	46.780
1985	53.430
1986	31.097
1987	27.998
1988	21.678
1989	17.957
1990	41.457
1991	25.517
1992	29.253
1993	19.719
1994	28.818
1995	30.622
1996	24.191
1997	21.729
1998	11.616
1999	15.986
2000	32.223
2001	35.421
2002	32.363
2003	25.863
2004	31.072
2005	27.160
2006	36.858
2007	46.174
2008	47.649
2009	32.464
2010	20.145
2011	13.569
2012	25.886
2013	27.720
2014	27.884
2015	25.777
2016	19.339
2017	20.935
2018	20.875
2019	23.138
2020	25.314
2021	14.004
2022	11.910
2023	22.264
2024	25.436
2025	20.772
2026	22.777
2027	25.281
2028	27.511
2029	29.230