To process the data and construct the rates, the statistical software Statistical Package for Social Sciences SPSS, 20.0 was used.
El procesamiento de los datos y la construcción de las tasas fueron desarrolladas mediante empleo del programa estadístico Statistical Package for Social Sciences SPSS, 20.0.
O processamento dos dados e a construção das taxas foram desenvolvidos mediante emprego do software estatístico Statistical Package for Social Sciences SPSS, 20.0.