Year	Percent of GDP (Units)
1980	32.111
1981	31.643
1982	30.870
1983	33.747
1984	35.683
1985	35.207
1986	41.325
1987	40.775
1988	36.767
1989	32.761
1990	31.907
1991	32.419
1992	31.867
1993	31.508
1994	30.335
1995	29.839
1996	28.987
1997	28.642
1998	28.425
1999	28.871
2000	29.561
2001	27.187
2002	28.907
2003	30.049
2004	30.459
2005	29.474
2006	31.275
2007	33.123
2008	31.049
2009	31.062
2010	34.056
2011	31.969
2012	32.247
2013	33.288
2014	34.750
2015	36.564
2016	36.112
2017	36.103
2018	35.133
2019	35.756
2020	40.269
2021	43.877
2022	43.032
2023	38.930
2024	38.957
2025	39.862
2026	41.929
2027	39.265
2028	40.243
2029	41.067