Not sure this is worth replying to, but let's see:

Perl 5

Idea about what Perl 5 should be, based on Perl 4: 1990-1991? (Perl 4.000 released in 1991)

First working, usable compiler: Oct 1994 (5.000)

"Classic" Perl, robust and mature implementation: Mar 2000 (5.6, Camel Book 3rd ed)

Major revival, Modern Perl: May 2011 (5.14, Camel Book 4th ed)

Perl 6

Idea about what Perl 6 should be, based on Perl 5: ~2000

Proof of concept prototypes for compilers: 2005-2010

First working, usable compiler: Dec 2015 (Rakudo 1.0/spec v6.c)

Robust and mature implementation: ??? (whoops, we're not there yet; it took Perl 5 almost six years)