Year	Percent of GDP (Units)
1980	47.683
1981	43.395
1982	38.488
1983	35.405
1984	35.212
1985	36.921
1986	45.996
1987	38.519
1988	32.430
1989	32.338
1990	28.944
1991	39.242
1992	44.995
1993	53.652
1994	50.643
1995	32.738
1996	28.446
1997	25.757
1998	23.574
1999	24.959
2000	28.668
2001	27.233
2002	33.945
2003	43.078
2004	43.829
2005	42.327
2006	52.587
2007	49.515
2008	47.545
2009	42.544
2010	42.952
2011	29.611
2012	30.908
2013	31.427
2014	29.661
2015	34.334
2016	37.907
2017	38.314
2018	39.406
2019	40.556
2020	46.109
2021	41.675
2022	36.271
2023	41.787
2024	37.970
2025	35.451
2026	34.260
2027	32.902
2028	31.532
2029	30.035