Sex Studies Total Both sexes Total 5.36 Both sexes Lower than secondary education 4.92 Both sexes Secondary education 5.26 Both sexes University 6.43 Males Total 5.86 Males Lower than secondary education 5.72 Males Secondary education 5.95 Males University 5.99 Females Total 4.85 Females Lower than secondary education 4.02 Females Secondary education 4.49 Females University 6.78