Encuesta de Fecundidad Preferences and motivations in terms of size of the family. Females, between 15-49 years. Females who have had less children than desired reasons why they had less children actual age (years). Units: absolute figures Total From 15 to 29 years old From 30 to 39 years old From 40 to 49 years old Wish to continue studying 20,685 6,307 11,894 2,483 Problems or health discomfort 303,152 25,010 116,451 161,691 Pregnancies, deliveries and child care are hard for females 100,865 14,928 56,951 28,987 Too old to have children 166,415 .. 46,695 119,720 Wish or need to work away from home 249,398 31,110 152,772 65,516 Lack of economic resources 546,797 81,622 275,200 189,975 Small dwelling 105,196 13,412 58,299 33,485 Excess of work in the household 52,235 2,837 34,428 14,970 Lack or scarcity of nursery schools or kindergartens 51,868 9,071 25,454 17,342 Because of my marital status 91,056 13,762 39,679 37,615 Because of my partner's marital status 6,905 1,145 .. 5,760 Because of unemployment (myself or partner) 119,888 32,355 57,072 30,461 Fear of child being born with health problems 77,212 2,298 44,504 30,410 Because this means losing freedom and not having time to carry out other activities 26,490 .. 15,476 11,015 Because of the worries and problems of bringing up children 173,507 16,575 84,379 72,554 Because up until now have not completed the desired size of family 646,241 220,964 401,589 23,687 Notes: Source: National Statistics Institute