2182-4452 2182-4452 S2182-44522017000200037 10.31492/2184-2043.rilp2017.32/pp.39-54 Angola Angola 31 12 2017 31 12 2017 32 37 52

1 2015 2 2007 3 2014 4 2007 5 2015 6 2001 5 2 71-83 7 2004 8 2011 9 Instituto Nacional de Estatística 2014 10 2008 11 2014 12 2007 13 2011 14 2011