Year Percent of GDP (Units) 1991 -14.534 1992 -3.049 1993 6.252 1994 28.738 1995 28.434 1996 19.873 1997 18.380 1998 11.058 1999 13.866 2000 15.810 2001 -3.204 2002 11.649 2003 20.109 2004 18.539 2005 19.575 2006 40.379 2007 50.988 2008 51.041 2009 49.288 2010 48.971 2011 59.826 2012 56.754 2013 58.380 2014 60.788 2015 31.981 2016 27.748 2017 32.850 2018 33.866 2019 29.223 2020 37.565 2021 47.285 2022 47.853 2023 46.905 2024 49.995 2025 52.076 2026 53.578 2027 55.000 2028 56.470 2029 58.379