Think mine was around £550 for the last year, but I'm very much expecting it to increase this year given the change in European law. I'm 27, have had my licence for 8 years and have 5 years NCB - I was only a named driver on my parents' car for the first 3 years. I think the £550 for this year is the most I've ever paid, which is mostly due to moving to a dodgier postcode (SE16 is in general much less nice than CB1!) and buying a nicer more powerful car.