Year % of total final energy consumption 1990 0.8 1991 0.8 1992 0.7 1993 0.6 1994 0.6 1995 0.6 1996 0.5 1997 0.2 1998 0.2 1999 0.2 2000 0.2 2001 0.9 2002 1.4 2003 2.4 2004 2.5 2005 2.3 2006 2.8 2007 3.4 2008 4.7 2009 3 2010 5.5 2011 6.4 2012 11.1 2013 16.6 2014 11.4 2015 5.4 2016 5.4 2017 3.9 2018 8.4 2019 8.4 2020 11 2021 13.6 2022 11