Year	Percent of GDP (Units)
1980	23.521
1981	21.453
1982	23.090
1983	24.155
1984	29.534
1985	27.802
1986	25.230
1987	23.489
1988	20.977
1989	22.946
1990	21.441
1991	17.136
1992	18.505
1993	20.914
1994	22.415
1995	23.301
1996	23.443
1997	23.145
1998	21.071
1999	22.588
2000	22.638
2001	21.804
2002	23.377
2003	23.623
2004	25.312
2005	25.456
2006	23.849
2007	24.798
2008	23.706
2009	19.584
2010	20.335
2011	20.056
2012	21.301
2013	22.032
2014	22.827
2015	23.040
2016	22.944
2017	23.279
2018	24.186
2019	23.970
2020	22.103
2021	25.013
2022	25.970
2023	24.367
2024	24.337
2025	24.220
2026	24.349
2027	24.370
2028	24.420
2029	24.519