5 years and 14 days. Not a day older than that!
And I've never ever ever wanted or even considered going out with someone less than a few months younger than me. The idea never used to cross my mind.
I'd only date someone my age.
I'd allow someone to be 1 year older, MAX!
2-3 Years is fine by me but no more.
I'd allow 4-5 years but thats it.
5-7 years, just like you Devil Man!
7-9 years, but that's pushing it.
10+ years because I'm not very fussy
20+ years. I'll date anything you put in front of me
40+ years. I am a filthy pervert 

5 years and 14 days. Not a day older than that!
And I've never ever ever wanted or even considered going out with someone less than a few months younger than me. The idea never used to cross my mind.