Just to be clear, I don't mean "reaches the ground as opposed to falling in the oceans", I mean "reaches the ground as opposed to burning up in the atmosphere".

Just to be clear, I don't mean "reaches the ground as opposed to falling in the oceans", I mean "reaches the ground as opposed to burning up in the atmosphere". If we include the space rock that burns up in the atmosphere that amount is measured in the hundreds or thousands of tons per day. There's a lot of rock in space, and the Earth is a big target. Tons per day is not a lot when compared to the surface area available for it to land on.