Year	Percent of GDP (Units)
1985	20.387
1986	21.098
1987	19.911
1988	18.200
1989	19.028
1990	16.497
1991	17.964
1992	18.297
1993	21.550
1994	18.737
1995	19.019
1996	18.830
1997	19.041
1998	18.573
1999	20.884
2000	20.925
2001	22.036
2002	23.007
2003	22.486
2004	22.497
2005	25.286
2006	24.412
2007	22.181
2008	22.346
2009	24.272
2010	25.899
2011	26.853
2012	27.726
2013	25.085
2014	23.385
2015	23.507
2016	22.627
2017	23.103
2018	23.125
2019	25.037
2020	33.052
2021	27.044
2022	23.288
2023	23.592
2024	23.466
2025	23.314
2026	23.332
2027	23.395
2028	23.471
2029	23.539