FG is entirely up to the yeast strain (given the same recipe-- FG is also influenced by the fermentability of the malt used) and can vary quite a bit-- it's not specific to lager or ale yeasts. If you are referring to Saflager S-23 yeast, it has an apparent attenuation of 72% - 78%.
On Deck: Jamil's Vanilla Robust Porter
Fermenting: Orange Blossom Mead
Kegs: Element 56 Pale Ale, Ron's Belgian Blonde, Summer'n Saison, Furloughktoberfest '09, Grateful Pale Ale, Sam Adams Cream Stout Clone, EdWort's Apfelwein