Year	Percent of GDP (Units)
1980	32.631
1981	32.045
1982	35.092
1983	35.147
1984	35.119
1985	34.250
1986	35.535
1987	36.671
1988	36.545
1989	35.768
1990	38.593
1991	38.980
1992	38.464
1993	42.253
1994	43.381
1995	41.941
1996	41.077
1997	39.515
1998	38.053
1999	36.227
2000	35.430
2001	37.000
2002	38.686
2003	42.298
2004	45.509
2005	46.054
2006	48.299
2007	50.354
2008	51.613
2009	50.249
2010	50.909
2011	48.846
2012	48.708
2013	47.676
2014	47.855
2015	45.669
2016	44.359
2017	44.710
2018	44.136
2019	43.786
2020	44.531
2021	45.276
2022	45.479
2023	43.643
2024	43.812
2025	43.725
2026	43.619
2027	43.522
2028	43.352
2029	43.189