Year % of total final energy consumption 1990 6.176548897876936 1991 6.4642176683363175 1992 6.673936980085707 1993 6.2335989467824735 1994 6.08272833257802 1995 6.704677907509118 1996 6.69124310754397 1997 6.433195787383918 1998 6.4393821548044 1999 7.501708304390524 2000 7.211362219437061 2001 6.459563672849973 2002 6.713985360344616 2003 7.102102961890153 2004 7.2812415127427705 2005 7.500694080626859 2006 7.95692766210317 2007 7.905618474521415 2008 8.408944789764579 2009 8.940121604327144 2010 8.889854258630097 2011 9.789689255061125 2012 10.168709009928701 2013 10.51008282602651 2014 10.642763668036103 2015 10.455522551237392 2016 10.813380811312314 2017 11.351935284339712 2018 11.463074125775687 2019 11.783751935735076 2020 12.599051231324589