Year	Percent of GDP (Units)
1990	49.976
1991	57.526
1992	54.194
1993	62.801
1994	59.771
1995	52.243
1996	55.156
1997	47.648
1998	55.111
1999	42.361
2000	29.785
2001	32.110
2002	31.581
2003	28.507
2004	29.919
2005	28.990
2006	29.545
2007	29.456
2008	23.547
2009	36.432
2010	31.997
2011	28.497
2012	30.984
2013	28.293
2014	32.315
2015	38.560
2016	40.138
2017	34.663
2018	28.896
2019	32.464
2020	34.699
2021	29.368
2022	24.273
2023	24.431
2024	23.994
2025	24.106
2026	23.846
2027	23.282
2028	23.335
2029	23.569