Year	Percent of GDP (Units)
1991	33.212
1992	31.832
1993	26.200
1994	24.355
1995	27.962
1996	24.457
1997	22.213
1998	27.887
1999	23.865
2000	25.446
2001	22.334
2002	22.336
2003	18.842
2004	18.514
2005	18.295
2006	20.105
2007	22.450
2008	27.803
2009	27.562
2010	28.334
2011	25.129
2012	24.455
2013	22.908
2014	23.352
2015	44.091
2016	36.266
2017	37.135
2018	33.253
2019	39.820
2020	43.376
2021	44.390
2022	43.050
2023	44.041
2024	42.217
2025	39.486
2026	39.188
2027	38.191
2028	37.990
2029	38.655