function AttnEduc( edlevel, edgrade )
    numeric z;
    box edlevel : edgrade => z;
        notappl :         => notappl;
        missing :         => missing;
              8 :         => 8;
              0 :         => 0;    { Preschool and no education counted as 0 years }
              1 :    6    => 2;    { !! 6 = years of primary school !! }
              1 :         => 1;
              2 :    6    => 4;    { !! 6 = years of secondary school !! }
              2 :         => 3;
              3 :         => 5;
    endbox;
    AttnEduc = z;
  end;

V149 = AttnEduc( V106, V107 );