3 way fight?

I read today that in 5 previous championships, where 3 drivers went in to the last race of the season fighting for the title, the leading driver did not win the title.

I remember 2010 with Vettel beating Alonso and Webber. Of course there was Kimi Raikkonen beating Alonso and Hamilton and back in 1986, Alain Prost beat the Williams of Nelson Piquet and Nigel Mansell.

I’m trying to find out, when was the other two years this happened?