Year	Percent of GDP (Units)
1980	26.650
1981	29.487
1982	21.509
1983	24.833
1984	22.716
1985	22.825
1986	12.120
1987	22.207
1988	9.621
1989	15.382
1990	23.115
1991	14.613
1992	13.698
1993	9.912
1994	11.734
1995	10.933
1996	16.741
1997	17.999
1998	18.497
1999	25.061
2000	36.648
2001	32.479
2002	33.331
2003	35.263
2004	36.790
2005	43.001
2006	46.909
2007	44.868
2008	49.256
2009	33.161
2010	36.986
2011	39.255
2012	39.222
2013	38.247
2014	33.579
2015	22.614
2016	19.521
2017	20.229
2018	27.048
2019	22.003
2020	10.914
2021	17.455
2022	28.129
2023	26.191
2024	27.230
2025	27.422
2026	27.471
2027	28.063
2028	28.877
2029	28.792