Stats should include surface type

[grumbledook]

Monthly and annual distance stats (for cycling) should also incl the percentage or absolute values ridden on paved vs unpaved surfaces.

[Henk_flanders]

I ride a lot of gravel and I like it I can set my map of the ride I did to Offroad. But then I wonder, how many miles of my ride were actually offroad. So, I think it would be nice if you could see that for example '15miles of your 40 mile ride were offroad'.
And you can do the same on a ride with a lot of climbs... '45 miles on your 100 mile ride were uphill'. This you can add on the map with the gradient coloured route.

[Henk_flanders]

Do this not only on monthly stats but on every ride so you can see how much of your ride was unpaved.