Year Percent of GDP (Units) 1989 55.950 1990 29.422 1991 25.347 1992 38.968 1993 23.764 1994 10.995 1995 14.380 1996 38.947 1997 51.531 1998 52.432 1999 13.981 2000 5.966 2001 5.127 2002 5.247 2003 9.989 2004 10.124 2005 17.038 2006 6.478 2007 5.864 2008 4.619 2009 11.655 2010 27.671 2011 20.745 2012 12.282 2013 14.550 2014 15.778 2015 16.561 2016 12.188 2017 12.375 2018 12.467 2019 13.242 2020 11.616 2021 13.894 2022 11.817 2023 10.557 2024 10.866 2025 12.480 2026 12.261 2027 12.218 2028 12.234 2029 12.266