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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 | 9,800 | 6,401 | 3,399 | 1,185 | 223 | 962 | 87.91 | 96.52 | 71.70 | ― | ― | ― | ― | ― | ― |  
              | 2009 | 10,431 | 6,793 | 3,638 | 1,247 | 226 | 1,021 | 88.05 | 96.67 | 71.94 | 0.14 | 0.16 | 0.24 | ― | ― | ― |  
              | 2010 | 10,942 | 7,000 | 3,942 | 1,350 | 223 | 1,127 | 87.66 | 96.81 | 71.41 | -0.38 | 0.14 | -0.52 | ― | ― | ― |  
              | 2011 | 11,644 | 7,414 | 4,230 | 1,447 | 234 | 1,213 | 89.99 | 97.40 | 77.86 | 2.33 | 0.59 | 6.45 | ― | ― | ― |  
              | 2012 | 12,611 | 8,023 | 4,588 | 1,604 | 251 | 1,353 | 87.28 | 96.87 | 70.51 | -2.71 | -0.53 | -7.35 | -0.63 | 0.36 | -1.19 |  |