Year % of total final energy consumption 1990 60.2 1991 59 1992 57.7 1993 56.1 1994 54.5 1995 54.1 1996 52.5 1997 53.1 1998 52.5 1999 55.3 2000 55.3 2001 54.1 2002 52.8 2003 51.5 2004 49.9 2005 49.7 2006 48.9 2007 47.4 2008 46.7 2009 45.8 2010 45.1 2011 43.6 2012 43.8 2013 41.8 2014 45.9 2015 48.6 2016 48.7 2017 49 2018 48.6 2019 48.4 2020 49 2021 49.1 2022 50.1