In the UK, the whole population is covered by the National Health System (NHS), which is financed through general taxation and run by the Department of Health. However, responsibility for the purchasing of health care services across the UK rests at the constituent country level: Primary Care Trusts in England, Health Boards in Scotland, local health groups in Wales and Primary Care Partnerships in Northern Ireland. Despite this coverage, there is an increasing trend towards private care and coverage, with 12% of the population contracting additional private health insurance.