I dont for sure but it depends on the airline, country etc..etc


here is a news flash regarding Aeroflot:

http://www.skyteam.com/EN/aboutSkyte...r/pr052404.jsp

and its still in the queue (I think its still in the queue)

General news: http://www.skyteam.com/EN/aboutSkyte...nter/press.jsp

It takes a while, and the news archives may give you some idea.