Year	Percent of GDP (Units)
1980	23.270
1981	22.136
1982	24.668
1983	25.607
1984	23.277
1985	19.914
1986	20.238
1987	20.444
1988	19.997
1989	19.206
1990	21.473
1991	28.209
1992	28.110
1993	28.595
1994	27.641
1995	28.800
1996	29.089
1997	27.887
1998	26.215
1999	26.518
2000	25.583
2001	25.348
2002	24.035
2003	22.772
2004	22.669
2005	23.464
2006	23.480
2007	24.180
2008	22.997
2009	20.820
2010	21.297
2011	23.261
2012	23.734
2013	22.132
2014	22.665
2015	21.876
2016	22.869
2017	22.964
2018	23.939
2019	23.713
2020	24.151
2021	25.260
2022	26.948
2023	25.667
2024	22.788
2025	25.437
2026	26.187
2027	26.193
2028	26.194
2029	26.200