Year	Percent of GDP (Units)
1991	42.028
1992	40.069
1993	45.284
1994	45.685
1995	43.082
1996	43.869
1997	41.428
1998	40.271
1999	34.484
2000	41.626
2001	44.608
2002	79.090
2003	79.562
2004	94.694
2005	87.312
2006	92.923
2007	89.056
2008	83.913
2009	91.094
2010	96.216
2011	102.782
2012	101.501
2013	105.437
2014	99.340
2015	90.100
2016	81.568
2017	70.403
2018	64.015
2019	58.549
2020	71.411
2021	69.891
2022	62.762
2023	61.998
2024	61.157
2025	60.726
2026	55.082
2027	50.787
2028	46.729
2029	42.898