Year	Percent of GDP (Units)
1980	47.382
1981	33.297
1982	29.022
1983	28.976
1984	25.190
1985	28.181
1986	25.323
1987	38.752
1988	28.634
1989	24.043
1990	19.308
1991	18.215
1992	19.780
1993	21.325
1994	22.248
1995	23.689
1996	26.836
1997	26.287
1998	29.136
1999	33.590
2000	34.630
2001	30.855
2002	35.414
2003	30.858
2004	33.677
2005	34.666
2006	32.528
2007	32.157
2008	29.528
2009	30.371
2010	31.157
2011	30.270
2012	27.184
2013	28.634
2014	27.968
2015	29.052
2016	26.045
2017	25.498
2018	33.757
2019	37.266
2020	36.531
2021	41.213
2022	49.617
2023	41.572
2024	39.682
2025	38.627
2026	37.820
2027	37.041
2028	36.284
2029	36.324