Year	Percent of GDP (Units)
1991	16.397
1992	14.677
1993	14.145
1994	17.350
1995	19.294
1996	22.131
1997	25.158
1998	25.107
1999	33.003
2000	26.953
2001	25.355
2002	22.029
2003	22.074
2004	24.057
2005	25.990
2006	28.253
2007	31.304
2008	33.602
2009	23.200
2010	24.840
2011	30.983
2012	31.012
2013	32.378
2014	28.879
2015	33.477
2016	31.095
2017	29.915
2018	24.075
2019	17.831
2020	19.423
2021	23.365
2022	21.928
2023	20.597
2024	20.074
2025	20.251
2026	20.327
2027	20.265
2028	20.507
2029	20.955