AFAICT, the latest GGI is 2.2.2, of Jan. 2007 so why Ubuntu would reach ony up to 1.0.12 in 2012 is anybody's guess
You should be able to get 2.2.2 deb files from Debian repositories; see their
package tracker.
If I were you, though, I would make the jump out of
graph and its ilk and start using
ptcgraph. JMHO.