Year	Percent of GDP (Units)
1980	27.121
1981	39.852
1982	41.023
1983	44.479
1984	46.845
1985	40.830
1986	40.314
1987	42.435
1988	40.026
1989	38.061
1990	41.016
1991	-8.026
1992	9.426
1993	23.388
1994	21.832
1995	21.481
1996	16.070
1997	10.200
1998	16.235
1999	17.803
2000	23.768
2001	28.703
2002	25.056
2003	26.156
2004	28.359
2005	27.784
2006	29.590
2007	23.837
2008	17.569
2009	16.654
2010	20.023
2011	20.254
2012	19.674
2013	16.827
2014	13.361
2015	15.804
2016	16.796
2017	17.085
2018	17.109
2019	14.742
2020	13.991
2021	16.661
2022	17.897
2023	20.229
2024	20.272
2025	19.614
2026	19.784
2027	20.004
2028	20.097
2029	20.143