Year % of total final energy consumption 1990 8.6 1991 8.4 1992 9 1993 9.7 1994 10 1995 10.2 1996 8.6 1997 9.7 1998 9.6 1999 8.8 2000 9.8 2001 11.5 2002 11.6 2003 10.8 2004 9.3 2005 9.6 2006 9.2 2007 7.7 2008 7.7 2009 8.6 2010 8.8 2011 8.8 2012 8.6 2013 8.9 2014 9.8 2015 9.4 2016 9.4 2017 10.4 2018 10.5 2019 10.7 2020 9.8 2021 9.2