Is there anyone that has the CSPAN copy of Weldon showing the chart? Destroyed or not, they cannot deny it existed... You can never destoy info completely... especially when there are so many greedy characters looking for leverage.
Here is the link to when he displayed in a talk at the Heritage Foundation on May 23, 2002, he shows it about 34 minutes into the speech.
http://www.heritage.org/Press/Events/2002archive.cfm