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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 | 3,673 | 1,440 | 2,233 | 788 | 80 | 708 | 78.55 | 94.44 | 68.29 |  |  |  |  |  |  |  
              | 2009 | 3,648 | 1,403 | 2,245 | 784 | 81 | 703 | 78.51 | 94.23 | 68.69 | -0.04 | -0.22 | 0.39 |  |  |  |  
              | 2010 | 3,591 | 1,328 | 2,263 | 807 | 66 | 741 | 77.53 | 95.03 | 67.26 | -0.98 | 0.80 | -1.43 |  |  |  |  
              | 2011 | 3,593 | 1,331 | 2,262 | 807 | 63 | 744 | 77.54 | 95.27 | 67.11 | 0.01 | 0.24 | -0.15 |  |  |  |  
              | 2012 | 3,615 | 1,329 | 2,286 | 837 | 65 | 772 | 76.85 | 95.11 | 66.23 | -0.69 | -0.16 | -0.88 | -1.70 | -0.66 | -2.06 |  |