Year	Percent of GDP (Units)
1990	30.674
1991	28.995
1992	30.015
1993	28.053
1994	28.718
1995	25.700
1996	25.660
1997	25.995
1998	22.486
1999	21.640
2000	19.580
2001	23.863
2002	23.184
2003	23.472
2004	22.531
2005	21.705
2006	22.972
2007	23.318
2008	23.515
2009	25.009
2010	22.285
2011	23.520
2012	25.403
2013	24.302
2014	23.329
2015	22.162
2016	20.255
2017	19.631
2018	20.155
2019	21.567
2020	20.139
2021	18.416
2022	19.867
2023	18.872
2024	17.634
2025	17.030
2026	16.752
2027	16.742
2028	16.745
2029	16.691