Year	Percent of GDP (Units)
1980	29.920
1981	27.146
1982	26.928
1983	23.821
1984	25.535
1985	26.453
1986	27.326
1987	29.415
1988	31.454
1989	35.435
1990	37.669
1991	48.625
1992	48.290
1993	43.909
1994	42.471
1995	34.293
1996	34.325
1997	26.377
1998	22.362
1999	19.741
2000	17.463
2001	20.923
2002	13.421
2003	32.175
2004	40.190
2005	40.328
2006	42.121
2007	53.398
2008	36.716
2009	42.499
2010	47.683
2011	44.891
2012	42.088
2013	40.036
2014	37.757
2015	37.986
2016	35.564
2017	36.448
2018	34.052
2019	32.192
2020	30.991
2021	28.994
2022	29.985
2023	30.522
2024	25.984
2025	26.998
2026	26.858
2027	26.809
2028	26.765
2029	26.704