Year	Percent of GDP (Units)
1980	29.559
1981	29.771
1982	26.154
1983	23.131
1984	22.711
1985	23.953
1986	21.238
1987	22.806
1988	22.179
1989	22.288
1990	22.513
1991	22.758
1992	22.805
1993	22.624
1994	24.337
1995	19.312
1996	19.738
1997	21.146
1998	22.804
1999	22.243
2000	22.265
2001	20.274
2002	20.408
2003	20.881
2004	22.046
2005	21.522
2006	22.564
2007	23.072
2008	24.121
2009	23.259
2010	23.331
2011	24.252
2012	24.378
2013	22.681
2014	22.293
2015	23.736
2016	24.343
2017	23.892
2018	23.477
2019	22.120
2020	20.207
2021	21.617
2022	22.705
2023	24.750
2024	24.612
2025	24.125
2026	23.941
2027	23.874
2028	23.801
2029	23.781