Year	Percent of GDP (Units)
1985	35.470
1986	31.450
1987	28.677
1988	31.229
1989	35.623
1990	36.512
1991	34.743
1992	37.339
1993	34.284
1994	31.990
1995	33.817
1996	33.000
1997	30.923
1998	29.458
1999	29.965
2000	29.124
2001	29.306
2002	28.427
2003	33.489
2004	35.495
2005	31.909
2006	30.840
2007	30.791
2008	29.167
2009	25.693
2010	24.207
2011	25.827
2012	22.503
2013	23.537
2014	27.103
2015	24.301
2016	24.761
2017	25.131
2018	25.459
2019	24.297
2020	22.653
2021	24.728
2022	25.673
2023	26.052
2024	26.707
2025	27.008
2026	27.215
2027	27.610
2028	27.585
2029	27.545