Animal count

We want to reduce the amount of animals coming in, 
 Is it this part I change ?  where it says count ?
 

     "Level": 1,

        "Preparation time [sec.]": 1,

        "Duration [sec.]": 60,

        "Time until appearance of new animals [sec.]": 10,

        "Animal sets": [

          {

            "ShortName of the animal preset": "polarbear1",

            "Setting number of animals depending on probability": [

              {

                "Chance probability [0.0-100.0]": 100.0,

                "Count": 2

              }