FOM,
I must admit to have being totally confused after your second-last post. Female intuition (although I am not female!

) seemed to tell me that something was not quite right in the state of Denmark although I couldn't quite put my finger on it. I think however, that thanks to Nick and yourself I've been rescued from the void of confusion and this graph suddenly seems perfectly logical. It seems that there were more things between heaven and earth than were dreamt of in my philosophy.
I walk away a slightly wiser man!
Thanks!
Irlandés
P.S. Any humble pie left? I'm kinda hungry.

P.P.S. OK, ok, sorry for overdosing on the Shakespeare.