Year Percent of GDP (Units) 1985 24.803 1986 27.844 1987 28.428 1988 29.044 1989 28.572 1990 29.355 1991 30.715 1992 33.258 1993 38.153 1994 43.740 1995 55.183 1996 58.880 1997 58.729 1998 56.191 1999 52.609 2000 47.258 2001 44.458 2002 41.031 2003 38.554 2004 35.884 2005 31.824 2006 26.795 2007 22.443 2008 25.424 2009 36.601 2010 45.992 2011 56.385 2012 72.444 2013 81.718 2014 86.237 2015 86.022 2016 87.128 2017 86.185 2018 84.909 2019 83.714 2020 103.132 2021 101.155 2022 97.378 2023 93.320 2024 92.450 2025 91.388 2026 91.541 2027 91.823 2028 91.813 2029 91.787