“The statistic speaks for itself. There is no reason to think the balance of
power will change.”

Webber signed a new one-year deal with Red Bull after his victory at
Silverstone in July.

The 36-year-old said finding the right time to retire would be crucial, but he
is yet to decide when he will call it quits.

“I haven’t been there yet but it is going to be a very difficult moment, no
question about it,” Webber told GP International magazine.

“I suppose it’s just about getting the timing right – not pulling the plug too
early, knowing you have more to give of yourself, or going too long and not
being quick enough or struggling to do the things you used to be able to do.

“That can become an issue as well.”