0188-6266 0188-6266 S0188-62662017000600040 10.15174/au.2017.1484 Mexico Mexico USA Brasil 00 12 2017 00 12 2017 27 6 40 52

1995 25 1 1 170-3 2012 15 2 2 259-68 2014 17 2 2 137-49 2007 16 1 1 65-75 1989 35 2 2 548-56 1980 2014 18 2 2 47-60 1980 26 1 1 71-80 1980 26 1 1 117-20 1999 5 2 2 53-65 2009 15 1 1 5-13 2009 66 1-12 2008 Argentina 2008 42 4 4 473-85 1972 18 3 3 241-5 2009 2000 46 1 1 1-12 2004 327-538 1976 44 3 3 461-5 2013 4 16 16 35-45 Instituto Nacional de Estadística y Geografía 2005 2012 3 Institute Inc. Statistical Analysis System 2008 1988 18 11 11 1363-8 2011 4 2 2 19-27 2014 20 1 1 59-70 2003 28 94 94 81-103 1973 49 3 3 136-8 1996 26 5 5 773-81 2009 15 1 1 61-73 2008 16 16 84-93 1997 2014 48 5 5 553-67 2003 12 3 3 73-85 2008 23 6 6 522-33 2013 5 21 21 58-74 2011 13 2 2 19-28 2001 1981 5 4 4 186-9 2004 2 2001 9 83-94 2014 5 25 25 35-50 2002 78 4 4 530-8 2001 10 1 1 1-73