Year % of total final energy consumption 1990 49.8 1991 48.9 1992 48.7 1993 48.2 1994 48.3 1995 46.1 1996 44.5 1997 43.7 1998 43.8 1999 44 2000 42.7 2001 41.3 2002 42.9 2003 45.1 2004 45.2 2005 46.1 2006 46.7 2007 47.2 2008 47 2009 48.9 2010 46.8 2011 45.2 2012 43.5 2013 42.3 2014 41.7 2015 43.7 2016 45.4 2017 45.3 2018 46.9 2019 47.5 2020 50 2021 46.5