I know it's not your graph, but I must pick a nit: No "James Carter" as president. He took the oath as "Jimmy Carter". http://www.youtube.c...tch?v=NUoXXEl8pQc IIRC, presidents have to take the oath under the name on the ballot, and Jimmy almost always went by "Jimmy".
http://www.google.co...&biw=1388&bih=960 has more graphs that might fit the bill for you.
HTH.
Cheers,
Scott.