Yes, I know the stats but seriously is Gana anyway near as good as Kante? From what I saw last season he's not.
Did you watch France last night? Kante was superb, he was breaking up play constantly and his passing was quality, at least until the last quarter.
I'm not saying Gana's bad, in fact I'd love it if he stays with us. He'd could be amazing in the Championship. But I'd be surprised if Spurs bought him just based on last seasons stats.