767 RW length

I always wanted to know what the Minimum RW length I could safely land my 767 on, this is a chart I found, notice the 767-300 entry Dry conditions less then 5000ft wet less then 6000ft assuming certain conditions, but what I find funny is the 737-800 entry it requires alot more length. Anyone care to comment on the validity of this chart.http://www.landrum-brown.com/MasterPlans/P..._Rwy-Length.pdf