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              | 年度 | 第1号保険者数 | 要介護(支援)認定者数 | 自立度(%) | 対前年変動率(%) | 対2008年変動率(%) |  
              |  | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ |  
              | 2008 | 19,895 | 10,387 | 9,508 | 3,537 | 512 | 3,025 | 82.22 | 95.07 | 68.18 |  |  |  |  |  |  |  
              | 2009 | 20,145 | 10,161 | 9,984 | 3,631 | 507 | 3,124 | 81.98 | 95.01 | 68.71 | -0.25 | -0.06 | 0.53 |  |  |  |  
              | 2010 | 20,195 | 9,737 | 10,458 | 3,794 | 501 | 3,293 | 81.21 | 94.85 | 68.51 | -0.76 | -0.16 | -0.20 |  |  |  |  
              | 2011 | 20,573 | 9,751 | 10,822 | 3,960 | 512 | 3,448 | 80.75 | 94.75 | 68.14 | -0.46 | -0.11 | -0.37 |  |  |  |  
              | 2012 | 21,547 | 10,322 | 11,225 | 4,153 | 535 | 3,618 | 80.73 | 94.82 | 67.77 | -0.03 | 0.07 | -0.37 | -1.50 | 0.25 | -0.42 |  |