How long well my dog live?

my dog is a blue Miniature pinture.She is currently 11 and her birthday is in january. She is very healthy. She gets walks and uses a wee wee pad. She eats iams hard dog food bc soft makes her gets the ruins.She is active and gets her shots and nails cut. I heard she can live up to 20 years but that's if im lucky. btw her names Sapphire. ok please answer.