Depends what you mean by late?
Around 5 minutes?
Pretty much everyday. I only live 10 mins away and usually get there 4-7 mins late. I will be late every day. Although this is college.
In secondary school, it usually depended on if I missed the train. So that was around once a week. Sometimes twice. Sometimes none.
If you mean by like 15/20 mins.
Then for college hardly ever. Maybe a few times as if I leave my id (Try and sneak pass.) or other reasons. Hpwever out of the two years I have been there, thats only a few times when I was that late. There were times when I woke up late so I went in for the next lesson instead of that one. Thats only happened once this year.
As for secondary school. I guess if I missed my train I would have been around 15 mins late. Only missed form.