Year % of total final energy consumption 1990 49 1991 49.5 1992 46.1 1993 47.3 1994 49.8 1995 48.9 1996 46.4 1997 45.8 1998 39.2 1999 41.6 2000 38.5 2001 37.5 2002 36.1 2003 36.2 2004 34.3 2005 33 2006 31.8 2007 29 2008 27.8 2009 28.9 2010 29.9 2011 28.9 2012 27.8 2013 26.7 2014 25.8 2015 26.1 2016 26.7 2017 26.7 2018 25.6 2019 26.2 2020 27.7 2021 27.4