Since being launched in October 1999, PEDro has been used to answer 18,632,434 clinical questions. In the last 3 months of 1999, PEDro was used to answer 51,642 questions. 2009 was the first year PEDro answered over 1 million questions. In 2017, PEDro answered over 2.2 million questions.
This, and other interesting facts about PEDro, are described in an editorial in Fisioterapia (the Spanish physiotherapy journal).