The population pyramid has a wide base, not unlike most other low-income countries. However, the two lower age groups show that the pyramid base has stopped widening; this concerns particularly the group of 0–9 years old with an even more pronounced effect in the group of 0–4 years old, thus indicating a timid onset of a demographic transition. This may be related to the improved health services and a changing position of women in the society. Indeed, a revised Family Code came into effect in 2000, advocating the principles of gender equality. This raised the minimum age of marriage from 15 to 18 years old and established women rights in terms of sharing any assets the household has accumulated. The Ethiopian penal code states that it is a crime to beat one's wife, and harmful traditional practices such as early marriage, abduction and female genital mutilation are now also considered to be a crime. Nowadays, almost all children are going to school but girls frequently drop out when they reach the age of 13 to 15 years: schools have no facilities for menstrual hygiene management and this is a major reason to interrupt schooling.