Year Percent of GDP (Units) 1988 91.109 1989 93.600 1990 96.738 1991 99.905 1992 107.054 1993 117.583 1994 123.641 1995 105.157 1996 109.544 1997 107.478 1998 105.549 1999 103.629 2000 99.667 2001 99.896 2002 97.821 2003 97.776 2004 97.147 2005 97.517 2006 97.894 2007 95.659 2008 97.211 2009 106.389 2010 108.213 2011 109.460 2012 114.056 2013 119.179 2014 121.421 2015 122.239 2016 121.606 2017 121.296 2018 121.832 2019 121.716 2020 141.462 2021 134.822 2022 129.100 2023 126.562 2024 128.874 2025 130.343 2026 132.761 2027 133.460 2028 135.364 2029 135.806