That's not a useful comparison, since you're distilling the question of how many bugs there are to whether there are bugs. If a language gets you two security-critical bugs in a 10-year-long project, that's not a reason to say "Eh, might as well have used C".
> Case in point -- how many web sites have been hacked that are written in PHP? or Wordpress? Avoiding C does not avoid bugs.
Sure, don't write security-critical software in PHP either. There are other languages in the world; some of them are specifically designed for writing security-critical software (e.g., Ada and Rust), some happen to be much better than C due to other parts of their design (e.g., Go, Haskell, idiomatic C++11, Vala), and some happen to be not significantly better than C (e.g., PHP, Python, Perl, bash, etc. etc.).