19 countries were consistently in the top 25 countries using PEDro every month of 2009 and accounted for nearly 84% of PEDro usage. They were, in descending order of usage:
- Australia 15.1%
- USA 14.6%
- Brazil 7.7%
- Netherlands 5.6%
- Italy 4.9%
- United Kingdom 4.4%
- Canada 3.7%
- Germany 3.6%
- Japan 3.5%
- Portugal 3.5%
- Switzerland 3.1%
- Sweden 2.4%
- New Zealand 2.3%
- Spain 1.9%
- Belgium 1.9%
- France 1.5%
- Austria 1.4%
- Denmark 1.4%
- Norway 1.2%