Year % of total final energy consumption 1990 6.656202888340965 1991 6.929751126001865 1992 6.970498936039612 1993 7.085672954641797 1994 7.312079779832187 1995 7.163190532464463 1996 7.293500660159991 1997 7.419741613012538 1998 7.476991095186405 1999 7.510498980307182 2000 7.698116221826902 2001 7.897882301680572 2002 7.727343065738516 2003 8.303180907318124 2004 8.559052980407515 2005 8.858757665946499 2006 9.66634878407099 2007 10.790977256531349 2008 11.498088623448986 2009 12.569779397877083 2010 13.38232310845876 2011 13.457213150135367 2012 14.894732412869569 2013 15.719259830353383 2014 16.33146868416396 2015 16.32676021375963 2016 16.37386543170103 2017 16.58950006260856 2018 17.559741395139078 2019 18.134081977309563 2020 19.855878508733813