Year	Percent of GDP (Units)
1980	31.224
1981	28.377
1982	28.654
1983	28.372
1984	27.208
1985	26.926
1986	26.036
1987	26.788
1988	29.090
1989	31.983
1990	30.139
1991	24.092
1992	21.073
1993	18.584
1994	19.761
1995	20.286
1996	20.182
1997	21.701
1998	22.961
1999	22.355
2000	23.815
2001	23.132
2002	22.009
2003	22.183
2004	22.828
2005	24.558
2006	23.958
2007	25.516
2008	25.212
2009	21.436
2010	22.048
2011	24.008
2012	23.355
2013	22.301
2014	21.894
2015	21.686
2016	23.239
2017	23.977
2018	25.237
2019	24.063
2020	24.493
2021	24.070
2022	26.724
2023	22.385
2024	23.376
2025	23.638
2026	23.762
2027	24.138
2028	24.472
2029	24.835