1405-3322 1405-3322 S1405-33222007000100133 10.18268/bsgm2007v59n1a11 Mexico Mexico 00 00 2007 00 00 2007 59 1 133 145

1992 10 309-17 1996 313 1994 5 232-3 2005 12 44-59 1989 7 3-12 2002 48 76-89 1992 10 171-82 Food and Agriculture Organization of the United Nations, y Programa de las Naciones Unidas para el Medio Ambiente (FAO-PNUMA) 1980 86 Food and Agriculture Organization of the United Nations, y United Nations Educational, Scientific and Cultural Organization (FAO-UNESCO) 1984 40 Food and Agriculture Organization of the United Nations (FAO) 1991 58 1975 1990 3 4 4 1992 151-63 1996 13 2 2 228-39 2005 38 95-8 2006 1961 2005 101 1992 10 221-5 1990 8 148-55 1996 13ª 1992 10 131-6 1992 10 202-9 1973 23/24 23/24 201-15 1992 10 192-201 Instituto Nacional de Estadística, Geografía e Informática, (INEGI) 2003 25 1947 2005 48 34-53 1992 10 137-44 1997 287-95 1990 30 3 3 72-7 1987 42 83-6 1990 150 425-30 1988 151 1997 384-96 1977 8 25-40 1986 1999 1979 1982 1992 10 164-77 1992 10 151-63 2004 21 1 1 195-201 1997 378-84 2002 21 109-15 1992 10 24-33 1993 10 178-82 1979 1999 17 97-108 1987 222 1938 192-33 1996 149-53 1929 24-36 1999 32 1077-83 2003 106-107 184-201 SSS-USDA 1998 Eighth edition 1979 1970 2001 35 311-20 1980 21 51-61 1981 71 335-58 1992 10 15-23