Year	Percent of GDP (Units)
1980	13.747
1981	10.390
1982	9.482
1983	8.953
1984	7.845
1985	7.805
1986	9.353
1987	5.680
1988	7.136
1989	8.551
1990	12.138
1991	12.162
1992	11.394
1993	11.696
1994	10.984
1995	12.054
1996	11.343
1997	12.154
1998	13.288
1999	13.553
2000	13.093
2001	19.934
2002	20.661
2003	20.484
2004	16.419
2005	15.663
2006	16.216
2007	16.182
2008	12.817
2009	13.720
2010	12.621
2011	12.707
2012	12.216
2013	11.618
2014	11.770
2015	13.584
2016	14.827
2017	14.793
2018	14.676
2019	16.691
2020	18.557
2021	19.060
2022	17.968
2023	19.247
2024	19.226
2025	18.986
2026	18.609
2027	18.222
2028	17.606
2029	17.515