Source: NHS Networks
This chart shows NHS spending in England on the largest three programme budgeting disease categories between 2003/04 and 2012/13, in real terms.
The largest single category of NHS expenditure is mental health, which includes patients with dementia.
The next largest disease categories of NHS spending are: problems with circulation (relating to the heart, and the circulation of blood in central and peripheral vessels); and cancers and tumours (including those suspected of having, or at risk of developing, cancer).
Between 2011/12 and 2012/13, spending on mental illness remained flat, while spending on problems of circulation has seen a fall of 1.4 per cent.
Expenditure on cancers and tumours has increased from £5.7 to £5.8 billion in the same period, an increase of 2.2 per cent in real terms.
The chart used programme budgeting data from NHS Networks, adjusted to 2013/14 prices using the Gross Domestic Product (GDP) deflator from HM Treasury.