Year	Percent of GDP (Units)
1990	20.264
1991	22.364
1992	30.391
1993	27.961
1994	22.551
1995	25.743
1996	28.449
1997	21.856
1998	23.208
1999	23.597
2000	24.646
2001	25.402
2002	24.069
2003	36.468
2004	40.804
2005	33.142
2006	36.474
2007	38.965
2008	41.163
2009	37.988
2010	40.844
2011	42.187
2012	37.544
2013	34.769
2014	28.459
2015	23.168
2016	22.574
2017	24.093
2018	26.019
2019	28.771
2020	29.444
2021	30.380
2022	33.559
2023	30.198
2024	37.835
2025	34.352
2026	32.541
2027	28.683
2028	26.320
2029	25.907