Year	Percent of GDP (Units)
1988	183.823
1989	219.071
1990	227.521
1991	207.741
1992	155.055
1993	140.590
1994	129.020
1995	117.826
1996	116.490
1997	108.974
1998	110.804
1999	109.000
2000	99.259
2001	94.410
2002	94.884
2003	88.788
2004	81.525
2005	72.959
2006	66.304
2007	64.252
2008	54.240
2009	57.965
2010	59.437
2011	62.069
2012	70.521
2013	75.584
2014	75.013
2015	78.423
2016	77.432
2017	75.657
2018	74.302
2019	78.015
2020	87.950
2021	89.788
2022	91.764
2023	91.192
2024	91.424
2025	90.306
2026	87.466
2027	80.542
2028	78.832
2029	77.078