Percentile Rank of Traveller

Would it be possible to add a percentile rank?

I got this idea because my friend is using another app which shows he is in the top 1% of travellers worldwide as he’s been to 101 countries.

Ideally this would be two percentiles; one for percentile of travellers who have visited N number of countries, and another for percentile of travellers who have visited N number of cities/towns/locations - as he has done a few more countries than me but I have spent more time exploring each country and visited many more towns and cities in each country.