The numbers are ways of noting the sexes of the animals and how many of each...
male.female.unknown
1.2 would be one male and two females
0.3.4 would be zero males, three females, and four unknowns
CH = captive hatched...which means the mother was caught in the wild while gravid..and her eggs were hatched in captivity. OR the eggs themselves were gathered from the wild.
CB or CBB = Captive bred or captive born & bred....which means the parents of the animal in question were already in captivity when breeding took place.
WC = wild caught...meaning an animal in captivity that was taken directly out of its natural environment.
LTC = long term captive....meaning a wild caught animal that has been in captivity for a long time.
....just to name a few...