Comparison Age Chart of Dog vs Human

The following chart is a more accurate comparison than the long accepted one year (human) equals seven years (canine),
 or the dog's age (human years) times four plus twenty equals the dog's comparitive age.  The average life span for an Airedale Terrier is 12 to 14 years.
 

     DOG    HUMAN 
  6 months  10 years 
  8 months  13 years
 10 months   14 years
 12 months  15 years
 18 months  20 years
    2 years  24 years
    4 years  32 years
    6 years  40 years
    8 years  48 years
   10 years  56 years
   11 years  60 years
   12 years  64 years
   13 years  68 years
   14 years  72 years
   15 years  76 years
   16 years  80 years
   18 years  88 years
   20 years  96 years
   21 years 100 years
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