Query: formula1_driver_efficiency_rating

select concat(forename, ' ', surname) as "player",
  avg(driver_standings.points) / avg(laptimes.milliseconds) as "efficiency_rating"
from
  driver_standings
join drivers on driver_standings.driverId = drivers.driverId
join laptimes on driver_standings.raceId = laptimes.raceId and driver_standings.driverId = laptimes.driverId
group by
  driver_standings.driverId
order by
  "efficiency_rating" desc
limit 5;