A/CONF.171/13 English Page 98 and the prevention of sexually transmitted diseases, as well as other basic actions for collecting and analysing population data, will cost: $17.0 billion in 2000, $18.5 billion in 2005, $20.5 billion in 2010 and $21.7 billion in 2015; these are cost-estimates prepared by experts, based on experience to date, of the four components referred to above. These estimates should be reviewed and updated on the basis of the comprehensive approach reflected in paragraph 13.14 of the present Programme of Action, particularly with respect to the costs of implementing reproductive health service delivery. Of this, approximately 65 per cent is for the delivery system. Programme costs in the closely related components which should be integrated into basic national programmes for population and reproductive health are estimated as follows: (a) The family-planning component is estimated to cost: $10.2 billion in 2000, $11.5 billion in 2005, $12.6 billion in 2010 and $13.8 billion in 2015. This estimate is based on census and survey data which help to project the number of couples and individuals who are likely to be using family-planning information and services. Projections of future costs allow for improvements in quality of care. While improved quality of care will increase costs per user to some degree, these increases are likely to be offset by declining costs per user as both prevalence and programme efficiency increase; (b) The reproductive health component (not including the delivery-system costs summarized under the family-planning component) is estimated to add: $5.0 billion in 2000, $5.4 billion in 2005, $5.7 billion in 2010 and $6.1 billion in 2015. The estimate for reproductive health is a global total, based on experience with maternal health programmes in countries at different levels of development, selectively including other reproductive health services. The full maternal and child health impact of these interventions will depend on the provision of tertiary and emergency care, the costs of which should be met by overall health-sector budgets; (c) The sexually transmitted diseases/HIV/AIDS prevention programme is estimated by the WHO Global Programme on AIDS to cost: $1.3 billion in 2000, $1.4 billion in 2005 and approximately $1.5 billion in 2010 and $1.5 billion in 2015; (d) The basic research, data and population and development policy analysis programme is estimated to cost: $500 million in 2000, $200 million in 2005, $700 million in 2010 and $300 million in 2015. 13.16. It is tentatively estimated that up to two thirds of the costs will continue to be met by the countries themselves and in the order of one third from external sources. However, the least developed countries and other low-income developing countries will require a greater share of external resources on a concessional and grant basis. Thus, there will be considerable variation in needs for external resources for population programmes, between and within regions. The estimated global requirements for international assistance are outlined in paragraph 14.11. 13.17. Additional resources will be needed to support programmes addressing population and development goals, particularly programmes seeking to attain the specific social- and economic-sector goals contained in the present Programme of /...