Year Percent of GDP (Units) 1985 65.374 1986 60.558 1987 58.506 1988 60.890 1989 52.406 1990 47.843 1991 46.927 1992 32.748 1993 21.920 1994 26.459 1995 16.140 1996 18.790 1997 17.215 1998 14.042 1999 26.731 2000 45.089 2001 31.441 2002 27.116 2003 34.188 2004 33.042 2005 38.183 2006 41.145 2007 35.579 2008 43.508 2009 33.445 2010 36.596 2011 34.711 2012 29.838 2013 20.881 2014 30.709 2015 16.679 2016 12.894 2017 16.362 2018 6.928 2019 6.636 2020 4.279 2021 11.210 2022 19.567 2023 19.005 2024 18.611 2025 18.460 2026 18.178 2027 16.662 2028 16.654 2029 16.733