Year	Percent of GDP (Units)
1980	36.058
1981	34.282
1982	34.797
1983	35.003
1984	32.853
1985	31.190
1986	31.823
1987	28.378
1988	26.366
1989	33.019
1990	31.196
1991	32.984
1992	32.038
1993	30.902
1994	33.881
1995	33.916
1996	27.553
1997	25.555
1998	29.792
1999	28.736
2000	25.403
2001	29.516
2002	33.135
2003	32.370
2004	34.945
2005	30.505
2006	30.125
2007	34.291
2008	37.574
2009	47.567
2010	44.251
2011	40.727
2012	42.557
2013	45.924
2014	48.502
2015	53.301
2016	54.205
2017	50.927
2018	48.939
2019	47.041
2020	44.520
2021	40.902
2022	35.979
2023	38.639
2024	38.602
2025	38.131
2026	37.862
2027	37.623
2028	37.730
2029	37.713