| Credit-Deposit(%) | 
                        
                100.20             | 
                       
                95.83             | 
                       
                86.25             | 
                       
                86.43             | 
                       
                85.66             | 
                   
        
            | Investment / Deposit (%)  | 
                            
                    30.20                 | 
                           
                    28.60                 | 
                           
                    28.25                 | 
                           
                    31.07                 | 
                           
                    33.66                 | 
                  
        
            | Cash / Deposit (%)  | 
                         
                6.34             | 
                       
                6.94             | 
                       
                7.18             | 
                       
                7.85             | 
                       
                6.83             | 
                  
        
            | Interest Expended / Interest Earned (%)  | 
                         
                59.18             | 
                       
                57.99             | 
                       
                46.26             | 
                       
                43.63             | 
                       
                46.32             | 
                  
        
            |  Other Income / Total Income (%) | 
                         
                13.18             | 
                       
                16.01             | 
                       
                16.19             | 
                       
                18.76             | 
                       
                17.26             | 
                  
        
            |  Operating Expenses / Total Income (%) | 
                         
                19.08             | 
                       
                19.99             | 
                       
                24.72             | 
                       
                23.81             | 
                       
                22.40             | 
                  
        
            | Interest Income / Total Funds (%) | 
                         
                7.97             | 
                       
                8.49             | 
                       
                7.13             | 
                       
                6.70             | 
                       
                7.38             | 
                  
        
            | Interest Expended / Total Funds (%)  | 
                          
                4.72             | 
                       
                4.92             | 
                       
                3.30             | 
                       
                2.92             | 
                       
                3.42             | 
                  
        
            | Net Interest Income / Total Funds (%)  | 
                          
                3.25             | 
                       
                3.56             | 
                       
                3.83             | 
                       
                3.77             | 
                       
                3.96             | 
                  
        
            | Non Interest Income / Total Funds (%)  | 
                       
                1.21             | 
                       
                1.62             | 
                       
                1.38             | 
                       
                1.55             | 
                       
                1.54             | 
                  
         
            | Operating Expenses / Total Funds (%) | 
                       
                1.75             | 
                       
                2.02             | 
                       
                2.10             | 
                       
                1.96             | 
                       
                2.00             | 
                  
        
            | Profit before Provisions / Total Funds (%)  | 
                         
                2.66             | 
                       
                3.10             | 
                       
                3.11             | 
                       
                3.36             | 
                       
                3.50             | 
                  
        
            | Net Profit / Total funds (%)  | 
                         
                1.79             | 
                       
                2.00             | 
                       
                1.95             | 
                       
                1.94             | 
                       
                1.90             | 
                  
        
            | RONW (%)  | 
                         
                14.30             | 
                       
                16.88             | 
                       
                16.96             | 
                       
                16.66             | 
                       
                16.61             |