$ corelist ByteLoader -a

ByteLoader was first released with perl 5.006
  5.006      0.03
  5.006001   0.04
  5.006002   0.04
  5.007003   0.04
  5.008      0.04
  5.008001   0.05
  5.008002   0.05
  5.008003   0.05
  5.008004   0.05
  5.008005   0.05
  5.008006   0.05
  5.008007   0.05
  5.008008   0.06
  5.008009   0.06
  5.009      0.05
  5.009001   0.05
  5.009002   0.05
  5.009003   0.06
  5.009004   0.06