Year	Percent of GDP (Units)
1980	35.269
1981	36.607
1982	37.704
1983	35.810
1984	36.906
1985	35.432
1986	35.531
1987	35.699
1988	39.491
1989	38.642
1990	39.420
1991	42.190
1992	42.817
1993	40.745
1994	40.377
1995	41.500
1996	42.424
1997	42.159
1998	40.307
1999	46.713
2000	46.272
2001	47.139
2002	43.183
2003	45.468
2004	46.973
2005	50.005
2006	51.288
2007	50.346
2008	51.248
2009	44.998
2010	42.132
2011	44.006
2012	45.108
2013	44.719
2014	46.122
2015	43.078
2016	58.987
2017	45.387
2018	44.803
2019	41.985
2020	42.205
2021	41.062
2022	42.487
2023	43.095
2024	42.966
2025	41.883
2026	41.239
2027	40.910
2028	40.899
2029	40.896