1405-7743 1405-7743 S1405-77432016000200251 Mexico Mexico Mexico 00 06 2016 00 06 2016 17 2 251 256

2009 10 6 6 2008 20 3 3 1-5 2014 111 39 39 1999 183 183 1990 1 100-483 2000 42 12 12 155-62 2001 27 5 5 275-80 2001 19 4 4 353-62 2012 Prot4 140-4 2004 4 247-52 2009 21 41 41 International Energy Agency, IEA 2012 2009 36 111 2007 1998 23 7 7 593-8 1967 l9 83-5