Year	Percent of GDP (Units)
1980	33.484
1981	41.548
1982	40.611
1983	44.391
1984	41.278
1985	47.552
1986	42.442
1987	36.216
1988	40.379
1989	27.932
1990	23.019
1991	28.933
1992	23.985
1993	23.523
1994	22.825
1995	24.709
1996	21.042
1997	33.385
1998	41.417
1999	25.452
2000	21.593
2001	29.238
2002	31.982
2003	28.685
2004	27.141
2005	24.705
2006	26.617
2007	24.659
2008	23.906
2009	27.961
2010	25.441
2011	32.355
2012	31.806
2013	33.986
2014	36.438
2015	36.147
2016	36.097
2017	29.948
2018	27.009
2019	29.892
2020	30.007
2021	33.522
2022	29.961
2023	34.176
2024	32.014
2025	32.915
2026	33.063
2027	33.139
2028	33.373
2029	33.462