Year % of total final energy consumption 1990 7.438822767528967 1991 7.349622576947424 1992 6.98156458024041 1993 6.8318261699213645 1994 6.96771410940186 1995 6.904819202622461 1996 6.928486147168308 1997 6.955254273762929 1998 6.824347276339896 1999 6.81629239839438 2000 6.672581764244385 2001 6.516335164327917 2002 6.360584005084122 2003 6.463016793524224 2004 6.77138769851273 2005 6.4161459701723205 2006 6.204323799096756 2007 5.610333675260048 2008 5.146764841893766 2009 5.051839928236818 2010 4.825768851897324 2011 4.672720691346426 2012 4.449686682360965 2013 4.4840177690029615 2014 4.358929929961089 2015 4.223495009385878 2016 4.2879148586416544 2017 4.375673006339673 2018 4.526394020042315 2019 4.732307136026775 2020 5.138584984174622