GUI Counter Based on Animation or RaycastHit

Hello, I am developing a game where the player collects wood from a tree. Each tree contains two wood. So when the tree is out of wood an animation plays and the tree falls over. What I am asking to do is display a counter, preferably a GUIText, that will increase when the Wood is decreased from the tree. So if the player takes one wood from one tree and one from another the counter will show "Wood: 2". There are going to be multiple trees.

This is the script attached to the player:

 #pragma strict
 
 var Damage : int = 50;
 var Distance : float;
 var MaxDistance : float = 5;
 var Text : GameObject;
 
 function Update ()
 {
         if (Input.GetButtonDown("Fire1"))
     {
         var hit : RaycastHit;
         if (Physics.Raycast (transform.position, transform.TransformDirection (Vector3.forward), hit))
         {
             Distance = hit.distance;
             if (Distance < MaxDistance)
             {
                 hit.transform.SendMessage("ApplyDamage", Damage, SendMessageOptions.DontRequireReceiver);
             }
         }
     }
 }

And this is the script attached to the tree:

  #pragma strict
 
 var Wood = 100;
 
 function Update () 
 {
     if (Wood <= 0)
     {
         Dead();
     }
 }
 
 function ApplyDamage (Dammage : int)
 {
     Wood -= Dammage;
     
 }
 
 function Dead ()
 {
     animation.Play ("TreeFall");
 }

I was thinking counting the amount of times the RayCastHit worked successfully in an if statement, but could not find a way to word it.

Thanks before hand!