Year % of total final energy consumption 1990 71.7 1991 71.7 1992 71.6 1993 71.2 1994 69.4 1995 70.7 1996 69.9 1997 68.7 1998 67.7 1999 68.7 2000 66.4 2001 63.4 2002 62.5 2003 60.4 2004 57.5 2005 58.6 2006 58.9 2007 57.1 2008 56.9 2009 56 2010 55.2 2011 54.7 2012 55.5 2013 58.3 2014 56.9 2015 55.3 2016 54.8 2017 54.7 2018 53.4 2019 53.2 2020 53.6 2021 54.5 2022 54.6