Year	Percent of GDP (Units)
1988	48.423
1989	49.588
1990	54.321
1991	55.474
1992	56.940
1993	57.929
1994	55.214
1995	51.619
1996	51.489
1997	49.492
1998	48.150
1999	47.214
2000	46.536
2001	47.340
2002	46.700
2003	47.174
2004	46.880
2005	47.242
2006	47.794
2007	46.784
2008	47.834
2009	51.111
2010	49.928
2011	49.174
2012	50.590
2013	50.952
2014	50.855
2015	50.317
2016	49.078
2017	48.763
2018	48.394
2019	48.472
2020	56.781
2021	56.277
2022	56.259
2023	54.957
2024	50.928
2025	50.317
2026	50.052
2027	49.846
2028	49.941
2029	50.001