The data are not held centrally in the format requested. Costs of treating people with HIV vary depending on the severity of symptoms and level of immune suppression. Estimated annual costs of HIV treatment, including the costs of combination antiretroviral therapies range between £12,000 to £19,000 per person. Treatment is lifelong. Total national health service expenditure on HIV treatment in 2006-07 was £497 million. This was the first year this data has been collected since HIV treatment and care budgets were placed into NHS baselines in 2002-03.