The number of doctors per capita increased 2% per year on average across OECD countries between 1990 and 2007, but in some countries the trend is reversing. These are some of the findings from OECD Health Data 2009, the most comprehensive source of comparable statistics on health and health systems across the 30 OECD countries.  Covering the period 1960 to 2007, this interactive database can be used for comparative analyses on: