This kind of chart does have the disadvantage that it depends on the assumption of average lighting and colour. For example, a red filter has different results in the woods and in a brick suburb, and so on. Results from a polarization filter can seem completely random.
You can make a chart yourself, just meter the same scene with a filter and without it and record the factor. That way you can do it for different types of scenery (in the woods, at the beach, off human skin and so on) and cover most of your applications.
Philipp