Year	Percent of GDP (Units)
1980	14.213
1981	23.816
1982	27.045
1983	35.338
1984	30.873
1985	21.047
1986	24.230
1987	22.882
1988	27.047
1989	27.049
1990	20.965
1991	17.331
1992	21.059
1993	20.655
1994	22.938
1995	18.755
1996	14.880
1997	16.546
1998	14.945
1999	15.609
2000	17.194
2001	20.768
2002	18.617
2003	18.607
2004	17.768
2005	16.983
2006	20.140
2007	20.921
2008	21.295
2009	25.691
2010	26.618
2011	28.900
2012	28.115
2013	31.712
2014	39.733
2015	32.166
2016	28.724
2017	28.966
2018	30.987
2019	27.998
2020	32.222
2021	30.765
2022	33.634
2023	30.645
2024	30.021
2025	28.256
2026	27.328
2027	25.073
2028	22.928
2029	21.882