Numbers
Here is a small extract from an article on Sunday:
http://www.independent.co.uk/news/uk/home-news/wannacry-wanna-detector-accident-and-emergency-patient-appointment-operation-a7734831.html
"NHS Digital, which manages the health service cyber security, said fewer than 5% of devices within the health service still use the old system Windows XP."
Is that a reasonable figure or is it one of those special statements where they include things like stethoscopes, thermometers and blood pressure meters in the count of 'devices'?