"Experience" stat

What's the deal with the drivers experience? Does it just go up 1 every season or is there more to it than that? 1 per 25 races? 1 per 50 races? Just curious.

Mine have remained static

My drivers are over 30 now and I signed them when they were 20 or so. Now they only have 10 experience. In 11-12 seasons of racing at the highest level they only have half the bar experience ? This is unrealistic. Is like saying Alonso has the bar half full and only Schumacher has maximum.

Seems to me like experience goes up faster in lower talent and low health drivers.

drivers should gain experience even through a test session on a runway or private testing all the way up to very high pressure racing.

Wahhhhh

http://igpmanager.com/play/?url=team-driver/23896

I think that's due to the amount of races done, and probably had high experience in the first place, not necessarily because they have low talent/high age.

As far as I know experience is determinded by the races done and probably effected by the age.
So a young driver with 200 races has more experience than an old driver with 200 races. But that might be wrong.