Occupational  history	Duration of 1st relation (years)	Total
Total	Total	663,335
Total	Under 5 years old	640,548
Total	From 5 to 9 years old	10,372
Total	From 10 to 14 years old	3,608
Total	From 15 to 19 years old	8,806
Total	20 years old and over	..
Previously worked  sometime	Total	529,936
Previously worked  sometime	Under 5 years old	507,150
Previously worked  sometime	From 5 to 9 years old	10,372
Previously worked  sometime	From 10 to 14 years old	3,608
Previously worked  sometime	From 15 to 19 years old	8,806
Previously worked  sometime	20 years old and over	..
Have never worked	Total	133,399
Have never worked	Under 5 years old	133,399
Have never worked	From 5 to 9 years old	..
Have never worked	From 10 to 14 years old	..
Have never worked	From 15 to 19 years old	..
Have never worked	20 years old and over	..