Year Percent of GDP (Units) 1992 26.267 1993 26.288 1994 40.565 1995 24.659 1996 7.958 1997 6.929 1998 6.637 1999 4.386 2000 15.009 2001 13.661 2002 13.811 2003 13.606 2004 14.865 2005 14.794 2006 23.433 2007 19.656 2008 17.201 2009 16.143 2010 17.964 2011 18.064 2012 17.960 2013 17.173 2014 14.981 2015 18.177 2016 20.521 2017 23.652 2018 20.710 2019 18.111 2020 16.713 2021 16.759 2022 17.518 2023 18.435 2024 22.317 2025 23.899 2026 24.428 2027 24.152 2028 23.008 2029 22.125