(53) For example the target of 0.7 per cent of rich countries' GNP as official development assistance, pledged by States at the 2002 World Summit on Sustainable Development, or the 20/20 initiative agreed at the World Summit for Social Development in 1995 whereby developing countries agreed to increase spending in the social sector to 20 per cent of total public expenditure, while donor countries agreed to increase aid to basic social services to 20 per cent of official development assistance.