Year	Percent of GDP (Units)
1980	37.832
1981	31.322
1982	23.801
1983	31.448
1984	24.764
1985	22.240
1986	19.361
1987	16.013
1988	16.416
1989	25.243
1990	33.336
1991	45.643
1992	45.064
1993	29.756
1994	19.577
1995	29.165
1996	36.945
1997	35.685
1998	34.344
1999	33.779
2000	37.553
2001	40.184
2002	43.166
2003	48.138
2004	47.263
2005	40.281
2006	38.648
2007	39.954
2008	41.813
2009	40.417
2010	38.039
2011	35.879
2012	38.005
2013	36.900
2014	39.521
2015	32.991
2016	31.245
2017	34.295
2018	32.562
2019	39.410
2020	44.260
2021	41.318
2022	39.953
2023	38.298
2024	37.508
2025	36.839
2026	36.294
2027	35.902
2028	35.642
2029	35.388