educational attainment				monthly earnings
                                                men     women
----------------------------------------------------------------
no schooling/kindergarten                       7.330   4,800
primary                                         8,800   5,300
lower secondary                                 9,500   6,000
upper secondary                                 10,000  9,000
matriculation                                   12,000  7,000
tertiary
  diploma/certificate                           12,500  10,500
  sub-degree course                             13,500  10,500
  degree course                                 21,250  16,875

all                                             11,000  8,500