Year	Percent of GDP (Units)
1980	45.028
1981	44.783
1982	46.270
1983	46.451
1984	46.928
1985	41.099
1986	36.558
1987	36.519
1988	33.408
1989	34.061
1990	35.653
1991	33.980
1992	35.516
1993	37.202
1994	32.912
1995	33.881
1996	35.040
1997	38.170
1998	31.490
1999	32.691
2000	35.174
2001	27.609
2002	25.074
2003	17.225
2004	22.892
2005	21.507
2006	22.379
2007	23.066
2008	30.160
2009	27.370
2010	27.658
2011	26.692
2012	29.263
2013	29.980
2014	29.430
2015	25.353
2016	26.426
2017	27.280
2018	24.748
2019	24.607
2020	22.867
2021	23.967
2022	22.319
2023	21.019
2024	21.662
2025	21.990
2026	22.148
2027	22.912
2028	24.531
2029	25.079