The Sea Vixen accident record was not good, but was by no means exceptional for that period. The following figures have been copied from the "Meteor Research" Thread. They include only accidents for the Meteor aircraft.
1. 150 total losses in 1952
2. 68 lost after running out of fuel
3. 23 lost doing official low level aeros displays
4. 890 lost in total
5. 436 fatal accidents between 1944 and 1986.