Year % of total final energy consumption 1990 10.6 1991 7.8 1992 7 1993 5.8 1994 5.8 1995 4.8 1996 7.1 1997 8 1998 8.5 1999 9.5 2000 7.5 2001 6.7 2002 5.3 2003 4.9 2004 5.2 2005 5.1 2006 4.5 2007 5.8 2008 7.8 2009 7 2010 4.8 2011 5.9 2012 6.2 2013 6.6 2014 4.3 2015 5.1 2016 3.7 2017 5.1 2018 4.6 2019 5.2 2020 6.1 2021 8.3 2022 9.6