Year	Percent of GDP (Units)
1980	22.573
1981	25.492
1982	20.974
1983	18.436
1984	15.051
1985	14.259
1986	14.810
1987	14.811
1988	16.209
1989	17.690
1990	17.454
1991	15.490
1992	8.482
1993	10.989
1994	12.633
1995	13.818
1996	13.846
1997	17.549
1998	21.045
1999	21.609
2000	20.136
2001	17.435
2002	19.597
2003	20.456
2004	21.275
2005	21.130
2006	21.271
2007	18.975
2008	18.297
2009	16.953
2010	15.880
2011	17.056
2012	16.181
2013	16.523
2014	16.534
2015	16.888
2016	16.385
2017	15.620
2018	14.262
2019	14.378
2020	17.768
2021	17.888
2022	17.892
2023	16.006
2024	16.728
2025	17.147
2026	17.523
2027	17.660
2028	17.634
2029	17.618