Save Load Data unity

I ve write this code, i tried to save and load Data into Unity. Here is my code

 using UnityEngine;
 using System.Collections;
 using System;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 using System.Collections.Generic;
 using System.Linq;
 
 
 
 public class GameControl : MonoBehaviour
 {
 public static GameControl control;
 
 public float health =10;
 public float experience=10;
 
 public  Dictionary<string, object> Name_Dic = new Dictionary<string, object>() 
 {
     {"laura",""},
     {"steph ",""},
     {"Ryan",""},      
 };
 
 void Start()
 {
     control = this;
 
 
 }
 
 void OnGUI()
 {
     GUI.Label(new Rect(10,10,100,30),"Health"+health);
     GUI.Label(new Rect(10,40,100,30),"Experience"+experience);
 
 
 }
 
 public void Save()
 {
     BinaryFormatter bf = new BinaryFormatter();
     FileStream file = File.Create(Application.persistentDataPath +"/playerInfo.dat");
 
     PlayerData data = new PlayerData();
     data.experience = experience;
     data.health = health;
     data.Name_Dic = Name_Dic;
 
     bf.Serialize(file, data);
 
     file.Close();
 }
 
 public void Load()
 {
     if(File.Exists(Application.persistentDataPath+"/playerInfo.dat"))
     {
         BinaryFormatter bf = new BinaryFormatter();
         FileStream file = File.Open(Application.persistentDataPath+"/playerInfo.dat",FileMode.Open);
         PlayerData data = (PlayerData)bf.Deserialize(file);
         file.Close();
 
         health = data.health;
         experience = data.experience;
         Name_Dic = data.Name_Dic;
     }
 }
 }
 
 [Serializable]
 
 class PlayerData
 {
 public float health;
 public float experience;
 
 public  Dictionary<string, object> Name_Dic = new Dictionary<string, object>() 
 {
     {"laura",""},
     {"steph ",""},
     {"Ryan",""},      
 };
 
 public  Dictionary<string, string> Dialogs_Dic = new Dictionary<string, string>() 
 {
     {"A1", "Hello"},
     {"A2", "Nice"},
     {"A3", "Test"},
 };
 }

The problem now that when i click on save button , i save the health and experience int because when i click on load button i finc that these two variables are saved and loaded. My problem is with the dictionary, i can't know if when i click on button save the dictionary values are saved or not. How can i now if the dictionary values are saved when i click on function saved and loaded if i click on button load.Is there a solution for that, thanks for your help