Survey characteristics

The sample consisted of 521 men (46.4 percent) and 601 women; 27 percent were single and 66 percent married. University graduates and the self-employed comprised 18.2 percent; merchants and sales staff 26.6 percent; office workers 17.4 percent; service industry staff 15.2 percent; laborers, technicians and farmers 11.5 percent; housewives 14.8 percent; students 9.9 percent and the unemployed 4.6 percent. The average age was 36 and the average education length 12 years. The average duration of the cohabitation or marriage was 11.3 years.