2007-1132 2007-1132 S2007-11322018000600201 10.29298/rmcf.v9i50.249 Mexico México Mexico Mexico 00 12 2018 00 12 2018 9 50 201 222

1991 429 1997 79 439-49 2000 30 1-67 2005 37-42 2000 145 1972 97 279-300 1993 14 179-95 1960 11 1-9 2007 43 815-21 2002 423 2007 92 2 2 183-98 1995 10 63-6 1999 31 1 1 17-30 1982 63 523-37 1998 187 2008 17 262-73 2006 229 304-13 2005 176 149-64 2016 25 1959 31 31 114 Instituto Nacional de Estadística y Geografía (INEGI) 1988 Primera 224 1993 25 2 2 130-50 2013 35 41-64 1998 1 53-9 2009 5 2 2 225-30 1963 44 2 2 322-31 1993 2nd 769 2009 258 7 7 1307-15 2005 72 1-16 2006 185 185 177-89 2012 19 1 1 147-55 2009 84 1-12 1978 432 2003 1 57-64 Statistical Package for the Social Sciences (SPSS) 2012 1988 18 1127-35 2005 144 456-62 2012 18 2 2 159-73 2003 174 1 1 401-12 2001 37 30-4 2007 60 1 1 3771-84 2008 1 85-93