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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 | 7,377 | 3,802 | 3,575 | 902 | 113 | 789 | 87.77 | 97.03 | 77.93 | ― | ― | ― | ― | ― | ― |  
              | 2009 | 7,520 | 3,830 | 3,690 | 923 | 112 | 811 | 87.73 | 97.08 | 78.02 | -0.05 | 0.05 | 0.09 | ― | ― | ― |  
              | 2010 | 7,542 | 3,732 | 3,810 | 983 | 109 | 874 | 86.97 | 97.08 | 77.06 | -0.76 | 0.00 | -0.96 | ― | ― | ― |  
              | 2011 | 7,655 | 3,781 | 3,874 | 1,004 | 110 | 894 | 86.88 | 97.09 | 76.92 | -0.08 | 0.01 | -0.14 | ― | ― | ― |  
              | 2012 | 7,970 | 3,990 | 3,980 | 1,078 | 103 | 975 | 86.47 | 97.42 | 75.50 | -0.41 | 0.33 | -1.42 | -1.30 | -0.39 | -2.43 |  |