It's woth having a look at this chart of commodity prices at
http://3.bp.blogspot.com/_m5i6pLhlNWU/S9HarzEkLUI/AAAAAAAAB6E/dDOct0lYaYk/s1600/CRBSPOT.JPG
The last three commodity bull markets went from 1896-1920, 1938-1951 and 1963-1980. The cuttent commodity bull market started in 2001.
Odds are we've got quite a few more years to go. That will be brilliant for TRF.