Correct database type for mysql to store values: 0.0 to 1.0

I am adding the priority field to XML sitemap to the datab开发者_JAVA百科ase and was wondering what is the correct database type to store values range from 0.0 to 1.0

You could use DECIMAL(2, 1), although that will actually be capable of storing -9.9 to 9.9.