| January | 
          +0.45%
 | 
          +0.79%
 | 
          -1.47%
 | 
          
            -2.02%
           | 
          
            -5.33%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | February | 
          +0.40%
 | 
          +0.98%
 | 
          -1.92%
 | 
          
            -2.64%
           | 
          
            +0.66%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | March | 
          +0.44%
 | 
          -1.66%
 | 
          +3.73%
 | 
          
            +6.83%
           | 
          
            +5.82%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | April | 
          +0.46%
 | 
          +1.89%
 | 
          -6.06%
 | 
          
            -1.06%
           | 
          
            +0.25%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | May | 
          +0.45%
 | 
          +0.88%
 | 
          -0.75%
 | 
          
            -2.39%
           | 
          
            +1.29%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | June | 
          +0.43%
 | 
          +0.97%
 | 
          -7.10%
 | 
          
            -6.67%
           | 
          
            -3.87%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | July | 
          +0.43%
 | 
          +1.19%
 | 
          -7.70%
 | 
          
            -9.93%
           | 
          
            -9.99%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | August | 
          +0.40%
 | 
          +1.58%
 | 
          +0.67%
 | 
          
            +0.58%
           | 
          
            -0.26%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | September | 
          +0.37%
 | 
          +1.63%
 | 
          -10.87%
 | 
          
            -6.84%
           | 
          
            -10.75%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | October | 
          +0.33%
 | 
          -0.44%
 | 
          +8.77%
 | 
          
            +3.38%
           | 
          
            +5.42%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | November | 
          +0.34%
 | 
          -0.01%
 | 
          +5.87%
 | 
          
            +6.76%
           | 
          
            +4.49%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
        
                                
          | December | 
          +0.38%
 | 
          +2.08%
 | 
          -5.85%
 | 
          
            -4.32%
           | 
          
            -3.27%
           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           | 
                  
            -           |