Year Percent of GDP (Units) 1990 16.736 1991 19.278 1992 22.125 1993 22.694 1994 23.352 1995 22.703 1996 23.924 1997 26.625 1998 29.079 1999 28.795 2000 32.805 2001 38.012 2002 47.653 2003 44.692 2004 48.774 2005 50.426 2006 47.954 2007 48.196 2008 46.898 2009 50.418 2010 52.766 2011 54.937 2012 60.177 2013 61.240 2014 61.847 2015 60.557 2016 60.211 2017 59.911 2018 60.231 2019 61.902 2020 94.199 2021 82.902 2022 74.249 2023 74.330 2024 75.839 2025 77.235 2026 76.633 2027 76.310 2028 76.051 2029 76.085