                     ɽվ1959-2006Ƶʼ
                                                         λ
         ЩЩЩЩЩ
         Ƶʣ%   KPֵ    ֵ   Ƶʣ% KPֵ     ֵ  
         ੤੤੤੤੤
          0.01      4.04    433.98    30.00      1.13  120.84    
         ੤੤੤੤੤
          0.02      3.81    408.39    40.00      1.00  107.31    
         ੤੤੤੤੤
          0.05      3.49    374.32    50.00      0.90  96.22     
         ੤੤੤੤੤
          0.10      3.25    348.35    60.00      0.81  86.59     
         ੤੤੤੤੤
          0.20      3.00    322.16    70.00      0.72  77.75     
         ੤੤੤੤੤
          0.50      2.68    287.40    75.00      0.69  73.61     
         ੤੤੤੤੤
          1.00      2.43    260.66    80.00      0.65  69.33     
         ੤੤੤੤੤
          2.00      2.18    233.63    90.00      0.56  60.45     
         ੤੤੤੤੤
          3.00      2.03    217.61    95.00      0.52  55.29     
         ੤੤੤੤੤
          5.00      1.84    197.13    97.00      0.49  52.80     
         ੤੤੤੤੤
          10.00     1.57    168.68    99.00      0.46  49.49     
         ੤੤੤੤੤
          20.00     1.30    139.12    99.50      0.45  48.38     
         ੤੤੤੤੤
          25.00     1.20    129.18    99.90      0.44  46.96     
         ةةةةة
                                                                           
           ֵ= 107.31       Cv=0.43      Cs=1.50                         
                                                                           
         
