Another option is don’t install Flash on your home PC.https://twitter.com/trendmicro/status/984851714846220289 …
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I wonder what portion of that 8% is a site that happens to serve an ad that uses Flash.
The surprising thing is how many legit sites use it. All BBC News clips and iPlayer is Flash. CNN video. http://Weather.com . Facebook games etc.
BBC says "In most cases the HTML5 player is used by default - where it's compatible with browser and content. In some cases, the Flash player will be used instead. There is no appreciable difference in video quality or functionality between them." http://www.bbc.co.uk/html5
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