They are very rare these days compared to the 1950s-80. I presume it's a combination of aircraft design developing and also the scale of the military and the intense training during the Cold War.

Have a flick through these links listing losses or two RAF types, it's quite sobering.

https://en.wikipedia.org/wiki/List_of_accidents_and_incident...

https://www.globalsecurity.org/military/world/europe/harrier...