Year Percent of GDP (Units) 1980 60.681 1981 53.903 1982 40.932 1983 29.899 1984 48.723 1985 35.718 1986 16.376 1987 18.954 1988 17.459 1989 25.423 1990 27.623 1991 23.948 1992 21.573 1993 12.790 1994 21.772 1995 27.378 1996 25.946 1997 38.232 1998 31.816 1999 31.242 2000 50.181 2001 52.683 2002 52.321 2003 59.628 2004 53.728 2005 51.226 2006 55.790 2007 58.448 2008 63.347 2009 43.998 2010 48.177 2011 60.099 2012 60.329 2013 58.252 2014 55.749 2015 45.569 2016 43.362 2017 46.600 2018 49.742 2019 46.151 2020 41.782 2021 53.266 2022 57.958 2023 56.782 2024 57.977 2025 55.942 2026 54.125 2027 50.122 2028 47.770 2029 45.543