Case structor in C# Unity

I am working on creating a levling system and I cant find anything on how case strucktures work in unity. I have worked in pure c# and created a case structor just not sure whats going on with it in Unity here. Here is my code so far then the error I am geting. If no one know a good solluction would any one plz recomend where I might find some help making a leveling system?

using UnityEngine;
using System.Collections;

public class PlayerStatus : MonoBehaviour 
{

	public int curExperience = 1;
	public int curLevel = 1;
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () 
	{
	
	switch(curLevel){
		case 0:
		if(curExperience <= 24){
         curLevel += 0;
         }
		case 1:
        if(curExperience >= 25){
         curLevel += 1;
         }
       break;
    	case 2:
        if(curExperience >= 55){
         curLevel += 1;
         }
       break;
       case 3:
       if(curExperience >= 95){
         curLevel += 1;
         }    
       break;
       case 4:
        if(curExperience >= 130){
         curLevel += 1;
         }
       break;
       case 5:
        if(curExperience >= 182){
         curLevel += 1;
         }
       break;
       case 6:
        if(curExperience >= 254){
         curLevel += 1;
         }
       break;
       case 7:
        if(curExperience >= 356){
         curLevel += 1;
         }
       break;
       case 8:
        if(curExperience >= 500){
         curLevel += 1;
         }
       break;
       case 9:
        if(curExperience >= 700){
         curLevel += 1;
         }
       break;
       case 10:
        if(curExperience >= 990){
         curLevel += 1;
         }
       break;
	}
	

	}

}

This is the error I am geting:

Assets/PlayerStatus.cs(18,9): error CS0163: Control cannot fall through from one case label to another.

If no one know a good solluction would any one plz recomend where I might find some help making a leveling system?

error CS0163: Control cannot fall through from one case label to another.

You’re missing a “break;” for case 0 at line 23