| Jan | 
          +0.36%
 | 
          +0.09%
 | 
          +2.66%
 | 
          
            +6.70%
           | 
          
            +6.14%
           | 
                  
            +3.84%
           | 
                  
            +3.40%
           | 
                  
            +2.92%
           | 
                  
            +2.22%
           | 
                  
            +1.10%
           | 
        
                      
          | Feb | 
          +0.36%
 | 
          +0.28%
 | 
          +0.22%
 | 
          
            -0.98%
           | 
          
            -0.27%
           | 
                  
            -0.07%
           | 
                  
            0.00%
           | 
                  
            +0.07%
           | 
                  
            +0.15%
           | 
                  
            +0.25%
           | 
        
                                
          | Mar | 
          +0.36%
 | 
          -0.93%
 | 
          +1.29%
 | 
          
            +3.84%
           | 
          
            +3.33%
           | 
                  
            +1.98%
           | 
                  
            +1.71%
           | 
                  
            +1.56%
           | 
                  
            +1.19%
           | 
                  
            +0.67%
           | 
        
                      
          | Apr | 
          +0.44%
 | 
          -0.19%
 | 
          +1.35%
 | 
          
            +0.34%
           | 
          
            +4.83%
           | 
                  
            +1.75%
           | 
                  
            +1.62%
           | 
                  
            +1.47%
           | 
                  
            +1.18%
           | 
                  
            +0.74%
           | 
        
                                
          | May | 
          +0.44%
 | 
          -0.09%
 | 
          -2.87%
 | 
          
            -4.36%
           | 
          
            -3.87%
           | 
                  
            -2.87%
           | 
                  
            -2.45%
           | 
                  
            -2.06%
           | 
                  
            -1.31%
           | 
                  
            -0.33%
           | 
        
                                
          | Jun | 
          +0.44%
 | 
          +0.19%
 | 
          +0.07%
 | 
          
            +0.47%
           | 
          
            0.00%
           | 
                  
            +0.26%
           | 
                  
            +0.27%
           | 
                  
            +0.28%
           | 
                  
            +0.37%
           | 
                  
            +0.33%
           | 
        
                                
          | Jul | 
          +0.44%
 | 
          +1.32%
 | 
          +0.65%
 | 
          
            -2.79%
           | 
          
            +0.98%
           | 
                  
            +0.13%
           | 
                  
            +0.20%
           | 
                  
            +0.35%
           | 
                  
            +0.37%
           | 
                  
            +0.49%
           | 
        
  
                                
          | Aug | 
          +0.44%
 | 
          +1.58%
 | 
          +2.36%
 | 
          
            +2.15%
           | 
          
            +2.76%
           | 
                  
            +2.22%
           | 
                  
            +1.96%
           | 
                  
            +1.81%
           | 
                  
            +1.39%
           | 
                  
            +0.90%
           | 
        
                      
          | Sep | 
          +0.35%
 | 
          +0.82%
 | 
          +2.58%
 | 
          
            +0.88%
           | 
          
            +0.15%
           | 
                  
            +1.41%
           | 
                  
            +1.33%
           | 
                  
            +1.17%
           | 
                  
            +1.01%
           | 
                  
            +0.73%
           | 
        
                         
          | Oct | 
          +0.43%
 | 
          +0.73%
 | 
          +3.27%
 | 
          
            +4.99%
           | 
          
            +3.87%
           | 
                  
            +3.28%
           | 
                  
            +2.94%
           | 
                  
            +2.51%
           | 
                  
            +1.79%
           | 
                  
            +1.04%
           | 
        
  
                                
          | Nov | 
          +0.43%
 | 
          +1.08%
 | 
          +1.91%
 | 
          
            +3.54%
           | 
          
            +2.96%
           | 
                  
            +2.32%
           | 
                  
            +2.03%
           | 
                  
            +1.78%
           | 
                  
            +1.34%
           | 
                  
            +0.79%
           | 
        
                               
          | Dec | 
          +0.34%
 | 
          -0.54%
 | 
          +1.42%
 | 
          
            +0.11%
           | 
          
            +3.11%
           | 
                  
            +1.31%
           | 
                  
            +1.18%
           | 
                  
            +1.17%
           | 
                  
            +0.90%
           | 
                  
            +0.63%
           | 
        
                | Total | 
                +4.93%
 | 
                +4.40%
 | 
                +15.79%
 | 
                +15.30%
                 | 
                +26.32%
                 | 
                                +16.53%
                 | 
                                +15.00%
                 | 
                                +13.72%
                 | 
                                +11.09%
                 | 
                                +7.59%
                 |