How many points does the first rider to climb a category 4 mountain get in Tour de France?

Explanation

The polka dot 'King of the Mountains' jersey marks the best climber in Tour de France. There are five categories of mountains: outside category, category 1, 2, 3 and 4. The first rider to climb a mountain in the various categories gets 20, 15, 10, 4 and 3 points respectively.