Year	Percent of GDP (Units)
1988	17.711
1989	16.367
1990	15.411
1991	14.637
1992	15.765
1993	14.963
1994	14.778
1995	15.729
1996	10.653
1997	12.895
1998	18.051
1999	17.700
2000	15.155
2001	13.265
2002	15.473
2003	9.231
2004	11.338
2005	11.813
2006	21.954
2007	13.915
2008	14.796
2009	15.455
2010	15.912
2011	12.009
2012	13.966
2013	11.095
2014	14.752
2015	13.375
2016	13.395
2017	12.800
2018	16.634
2019	18.335
2020	21.751
2021	13.667
2022	12.297
2023	14.369
2024	13.921
2025	16.081
2026	18.187
2027	18.350
2028	18.635
2029	16.097