Year	Percent of GDP (Units)
1983	22.971
1984	24.153
1985	24.719
1986	25.507
1987	23.588
1988	19.143
1989	22.347
1990	24.533
1991	22.388
1992	22.792
1993	23.548
1994	19.292
1995	17.095
1996	17.567
1997	20.563
1998	20.029
1999	21.445
2000	20.457
2001	21.565
2002	20.817
2003	18.669
2004	19.437
2005	20.612
2006	19.445
2007	18.021
2008	19.754
2009	24.651
2010	18.394
2011	19.688
2012	22.417
2013	27.610
2014	27.050
2015	22.846
2016	20.868
2017	18.367
2018	20.319
2019	20.748
2020	23.508
2021	21.971
2022	21.925
2023	22.779
2024	22.200
2025	21.329
2026	20.751
2027	19.943
2028	19.903
2029	20.338