Occupational  history	Number of live births	Total
Total	Total	91.110
Total	None	55.175
Total	One	8.496
Total	Two	17.304
Total	Three	7.874
Total	Four	1.201
Total	Five and more	1.060
Total	Average	0,84
Previously worked  sometime	Total	56.218
Previously worked  sometime	None	30.977
Previously worked  sometime	One	5.197
Previously worked  sometime	Two	14.320
Previously worked  sometime	Three	4.664
Previously worked  sometime	Four	..
Previously worked  sometime	Five and more	1.060
Previously worked  sometime	Average	0,95
Have never worked	Total	34.892
Have never worked	None	24.198
Have never worked	One	3.299
Have never worked	Two	2.984
Have never worked	Three	3.210
Have never worked	Four	1.201
Have never worked	Five and more	..
Have never worked	Average	0,68