tooth_class : One of Anterior, Posterior, or Premolar
specimen : Unique identifier for specimen
num_amtl : Number of teeth missing of given class
sockets : number of observable sockets that could be scored for missing teeth
age : Estimated age of speciment at death
stdev_age : Assigned uncertainty of age at death
prob_male : Estimate of sex of specimen
genus : Specimen genus, one of Homo, Pan, Papio, or Pongo
population : Region specimen originates from