How many young does a frog produce in an year?

That really depends on its environment and the frog itself. Because frogs are ectothermic (cold blooded) they are not active in cold weather and so will not reproduce. However if the temperature is warm they will go into a sort of over active mating frenzy and reproduce many times in short succession. Another thing is that different frogs produce different numbers of young for example the cane/ marine toad produces thousands of eggs in each clutch whereas some species of poison dart frog only have about five