Year	Percent of GDP (Units)
1990	16.707
1991	39.854
1992	32.902
1993	28.606
1994	28.344
1995	29.727
1996	28.521
1997	29.273
1998	26.839
1999	25.586
2000	32.449
2001	26.434
2002	20.095
2003	22.402
2004	24.109
2005	31.731
2006	35.777
2007	34.783
2008	39.589
2009	28.870
2010	31.646
2011	35.459
2012	37.153
2013	37.744
2014	34.039
2015	20.683
2016	29.723
2017	27.972
2018	30.461
2019	31.039
2020	28.662
2021	30.423
2022	32.824
2023	32.196
2024	31.156
2025	30.724
2026	30.356
2027	29.944
2028	29.611
2029	29.301