Year	Percent of GDP (Units)
1991	63.296
1992	62.112
1993	63.784
1994	63.888
1995	65.627
1996	66.795
1997	66.633
1998	58.194
1999	61.925
2000	62.859
2001	52.155
2002	51.625
2003	52.556
2004	51.578
2005	49.977
2006	45.715
2007	42.704
2008	45.053
2009	44.471
2010	43.360
2011	46.970
2012	51.780
2013	46.745
2014	50.737
2015	52.401
2016	58.908
2017	67.099
2018	72.908
2019	67.297
2020	77.624
2021	79.942
2022	79.940
2023	76.557
2024	78.640
2025	79.500
2026	79.852
2027	81.231
2028	82.261
2029	83.177