Year	Percent of GDP (Units)
1980	31.932
1981	38.668
1982	37.316
1983	39.096
1984	34.822
1985	36.810
1986	36.384
1987	39.659
1988	39.706
1989	44.364
1990	42.499
1991	43.875
1992	40.517
1993	29.920
1994	31.497
1995	32.399
1996	31.621
1997	32.227
1998	19.227
1999	13.640
2000	25.087
2001	25.315
2002	24.215
2003	28.089
2004	27.358
2005	28.579
2006	28.986
2007	28.736
2008	32.998
2009	31.173
2010	32.880
2011	32.984
2012	35.072
2013	33.831
2014	34.600
2015	34.063
2016	33.859
2017	33.711
2018	34.571
2019	33.780
2020	32.343
2021	31.449
2022	29.746
2023	30.520
2024	30.541
2025	30.583
2026	30.627
2027	30.675
2028	30.722
2029	30.756