Year	Percent of GDP (Units)
1990	18.964
1991	18.449
1992	18.077
1993	17.402
1994	16.696
1995	17.654
1996	16.205
1997	15.695
1998	14.588
1999	14.926
2000	13.954
2001	13.926
2002	13.897
2003	13.192
2004	12.944
2005	14.212
2006	14.610
2007	14.067
2008	13.156
2009	12.684
2010	12.583
2011	13.122
2012	11.876
2013	11.605
2014	11.179
2015	12.630
2016	13.218
2017	12.786
2018	12.588
2019	11.934
2020	8.763
2021	8.317
2022	8.334