Year	Percent of GDP (Units)
1980	29.354
1981	29.012
1982	29.254
1983	28.898
1984	28.310
1985	23.445
1986	23.379
1987	28.847
1988	28.578
1989	26.545
1990	28.217
1991	26.786
1992	29.041
1993	31.752
1994	30.891
1995	34.589
1996	37.901
1997	37.936
1998	41.661
1999	40.279
2000	37.706
2001	34.048
2002	34.546
2003	36.303
2004	36.949
2005	36.886
2006	38.787
2007	38.629
2008	38.559
2009	33.236
2010	33.597
2011	34.197
2012	31.045
2013	29.543
2014	29.485
2015	28.411
2016	28.389
2017	28.338
2018	26.128
2019	24.546
2020	23.824
2021	25.992
2022	26.582
2023	27.032
2024	27.698
2025	28.629
2026	29.000
2027	29.249
2028	29.707
2029	29.873