Year Percent of GDP (Units) 1980 42.517 1981 44.725 1982 43.003 1983 41.817 1984 42.212 1985 41.285 1986 41.277 1987 39.282 1988 37.075 1989 32.533 1990 28.480 1991 28.481 1992 33.227 1993 37.960 1994 40.724 1995 43.653 1996 43.714 1997 44.132 1998 41.970 1999 40.410 2000 37.686 2001 34.958 2002 35.435 2003 36.764 2004 39.802 2005 41.000 2006 42.058 2007 43.174 2008 50.827 2009 64.915 2010 75.860 2011 81.425 2012 84.483 2013 85.316 2014 87.094 2015 87.867 2016 87.825 2017 86.723 2018 86.345 2019 85.658 2020 105.800 2021 105.196 2022 100.432 2023 101.084 2024 104.347 2025 106.407 2026 107.335 2027 108.273 2028 109.231 2029 110.081