Year	Percent of GDP (Units)
1991	38.985
1992	41.454
1993	45.095
1994	47.537
1995	54.902
1996	57.794
1997	58.867
1998	59.535
1999	60.387
2000	59.340
2001	58.193
2002	59.946
2003	63.538
2004	65.201
2005	67.546
2006	66.887
2007	64.158
2008	65.682
2009	73.157
2010	81.995
2011	79.417
2012	80.745
2013	78.322
2014	75.279
2015	71.947
2016	68.955
2017	65.204
2018	61.914
2019	59.580
2020	68.773
2021	68.986
2022	66.077
2023	64.278
2024	63.745
2025	62.301
2026	61.000
2027	59.848
2028	58.717
2029	57.700
