(Bug?)Cards generated with the same copyright year interval

Every single card I generate comes with the copyright 1993-2012. I don't know if the card generator was designed so that cards would be generated like this but I suppose that if I intended to generate a card, lets say, "entomb", the copyright year interval should be 1993-2001, intead of 1993-2012. Can anyone help me correct this, or at least point out where in the code there is a logic that implements this, so I can try to alter it?
Thanks in advance!
Thanks in advance!