Year Percent of GDP (Units) 1995 29.560 1996 26.397 1997 26.537 1998 27.714 1999 26.185 2000 29.193 2001 25.602 2002 22.528 2003 21.550 2004 25.352 2005 24.261 2006 22.665 2007 21.897 2008 24.051 2009 17.923 2010 13.255 2011 12.481 2012 13.084 2013 15.031 2014 16.780 2015 21.411 2016 21.976 2017 21.844 2018 21.694 2019 23.564 2020 9.187 2021 19.079 2022 26.342 2023 26.489 2024 25.935 2025 26.255 2026 26.323 2027 26.468 2028 26.597 2029 26.726