What's the longest you've ever played with one family?

I had a sims 3 save years ago with 7 generations. Unfortunately the entire save got really glitchy and laggy so I had to stop playing it. Sims 4 I haven’t gotten very far but that’s for many reasons including not having a gaming computer or a computer in general that could play without getting too hot. But I finally do have a nice computer and plan on working past what I got managed in sims 3. Sims 4 is much nicer on large saves.