Year	Percent of GDP (Units)
1990	9.816
1991	16.088
1992	12.143
1993	15.849
1994	18.199
1995	17.460
1996	17.892
1997	15.995
1998	17.413
1999	18.846
2000	18.900
2001	17.901
2002	20.593
2003	22.457
2004	23.466
2005	22.850
2006	25.561
2007	24.265
2008	24.469
2009	23.989
2010	21.685
2011	22.876
2012	21.795
2013	20.092
2014	22.616
2015	19.175
2016	19.400
2017	21.917
2018	21.026
2019	20.792
2020	16.028
2021	9.773
2022	6.540