                
  
2021/5/20
                          1                      —                                                                                 2021  5  20                   2020  11  1  0     12       2                                  0 —14 3    3377673  14.04%  15 —59    15914249  66.17%   60       4757233  19.78%    65       3138918  13.05%   2010            0 —14       0.03    15—59       8.28    60         8.30    65         5.49           4 -1          
                     12   15-59      65%   10  60%-65%   1 60%   1        12    65        7%   2  65       14%         4 -2           
             [1]                  [2]                                                                                [3] 0-15  3595203 16-59  15696719 
 
         
 
 
  
 
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