|  | 3rd survey | 4th survey | 
| Total | Parents only
 | Nurses, etc. since
 two years
 old or
 younger
 | Parents, and then
 nurses, etc.
 since three
 years old
 | Parents, and then
 kinder-
 garten
 teachers
 since
 three
 years old
 | 
| Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 
| Feel some burdens or worries | 86.2 | 87.0 | 87.9 | 86.1 | 84.5 | 86.5 | 
|  | Physical burdens | 32.1 | 30.4 | 32.6 | 28.6 | 26.9 | 29.5 | 
| Financial burdens | 25.7 | 31.5 | 30.2 | 31.1 | 34.7 | 43.4 | 
| Lack of free time | 58.9 | 53.0 | 57.4 | 50.8 | 41.6 | 38.6 | 
| Lack of partner's involvement in child rearing | 6.2 | 6.9 | 6.8 | 6.5 | 8.0 | 7.9 | 
| Parental disagreement in discipline | 9.4 | 11.9 | 10.4 | 12.4 | 14.5 | 11.3 | 
| Unable to work or do enough housework | 20.0 | 20.1 | 17.1 | 28.7 | 21.4 | 17.0 | 
| Concerned about what people think or talk about the child | 5.1 | 8.3 | 9.4 | 6.1 | 8.8 | 8.4 | 
| Constant tension due to the active child | 22.7 | 15.2 | 17.2 | 11.8 | 12.7 | 11.7 | 
| Unable to build good relationship with other parents | 1.2 | 1.6 | 1.9 | 1.1 | 1.3 | 1.6 | 
| No caregiver when temporary childcare is needed | 12.0 | 11.2 | 15.2 | 5.8 | 5.8 | 9.3 | 
| Disobedience of the child | 21.9 | 27.6 | 28.3 | 25.2 | 28.8 | 27.9 | 
| Child being prone to illness | 4.1 | 3.8 | 3.2 | 4.0 | 6.6 | 5.2 | 
| No doctor available in the neighborhood for sudden illness of the child | 3.5 | 3.4 | 3.4 | 3.1 | 4.1 | 3.2 | 
| Concerned about the growth of the child | 7.1 | 7.6 | 7.8 | 6.5 | 8.5 | 7.5 | 
| Do not know how to discipline the child | 8.7 | 7.3 | 7.1 | 7.1 | 8.0 | 7.9 | 
| No tolerance toward the child | ... | 23.0 | 22.1 | 24.9 | 23.7 | 23.3 | 
| No affection to the child | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | 0.6 | 
| Child reluctant in going to school or kindergarten | ... | 2.5 | 2.0 | 2.7 | 3.8 | 3.1 | 
| Others | 3.0 | 3.4 | 3.4 | 3.6 | 3.6 | 3.1 | 
| No particular burdens or worries | 13.0 | 12.1 | 11.4 | 12.7 | 14.3 | 12.9 |