Hi @Adminteam ,
Is this a Classic Quiz or a New Quiz? I don't use quizzes, but there is a way to set different point values for different answers. So you could set up the question so that an answer of "0 years" earns 0 points, "over a year" earns 1 point, "some concepts" earns 2 points, and "more than 3 years" earns 3 points. This feature might be available only in New Quizzes; I'm not sure.
[ETA: If you're using Classic Quizzes, there might be a way to do it as a Survey instead.]
Setting different point values per answer would allow you to see exactly what experience each user has.
Be sure to select "Do not count this assignment towards the final grade" since it is not an actual assignment.