Meanwhile, the reduction in gender-related educational disparities has been very striking and stands in contrast to trends in labour market indicators (see chapter IV for more details). This means not only that the physical housing itself must be adequate, but that there must be access to appropriate services such as water, sanitation and energy and security of ownership and environment. This section provides a brief overview of the recent evolution of inequalities in access to basic services (water, sanitation and electricity) and in the quality of housing (using an approach based on the quality of materials), disaggregated by income brackets.