Hi Josephjo and welcome here!
Actually, based on an Eurocade team idea, I took the liberty to upgrade your graph and during the whole process I was wondering what the original author would say.
I could'nt find any credits on the picture and had no means to contact you to ask you for permission so I'm glad that you contacted us instead.
I'm relieved you like it, too... oh, and I'm sure it will be put to good use VERY soon 
I'm honored

Feel free to "borrow" anything I do, sometimes there's not enough love spread around in this hobby.
Passing the compliments back, you must be very impressed with the Eurocade 2012 logo. IMO very, very slick.
I have a couple of ideas for graphics when I compile my article on Eurocade 2012............any day now, or when Andre checks his inbox!