Year	Percent of GDP (Units)
1980	144.450
1981	91.037
1982	99.518
1983	84.405
1984	116.063
1985	89.233
1986	78.437
1987	86.036
1988	111.116
1989	104.283
1990	75.373
1991	58.122
1992	74.769
1993	60.138
1994	100.603
1995	40.375
1996	39.272
1997	53.928
1998	30.609
1999	21.945
2000	20.061
2001	18.882
2002	23.596
2003	27.648
2004	20.962
2005	18.253
2006	20.079
2007	24.273
2008	17.339
2009	18.365
2010	19.494
2011	15.846
2012	19.354
2013	19.230
2014	20.140
2015	14.975
2016	18.131
2017	18.121
2018	19.167
2019	16.166
2020	17.546
2021	18.288
2022	18.083
2023	16.995
2024	18.340
2025	19.284
2026	19.938
2027	20.794
2028	21.721
2029	22.812