 The American breed club puts the lifespan of the Westie at 12 to 16 years . A club survey puts the average lifespan at 11 @.@ 4 years . Veterinary clinic data from the UK show a typical lifespan of 10 @.@ 5 to 15 years . The French Kennel Club database gives 8 to 16 years , with a median of 13 years . The typical litter size is between three and five puppies . However , some litters may contain more than this , one of which was a Westie called Isobel , which gave birth to a litter of 11 puppies on 10 April 2012 . 
