Year % of total final energy consumption 1990 84.7 1991 83.8 1992 83.9 1993 81.3 1994 80.6 1995 78.7 1996 73.5 1997 63.6 1998 58.2 1999 54.6 2000 45.9 2001 46.1 2002 31.3 2003 29.5 2004 7.2 2005 7.1 2006 7 2007 8.5 2008 7.2 2009 9.2 2010 5.7 2011 5.6 2012 4.4 2013 3.7 2014 4.9 2015 5.5 2016 4.8 2017 5 2018 4.8 2019 7.4 2020 6.5 2021 5.2 2022 4.2