how to know how many packets are routed by which route in the routing table. Just Like in Natting/ACL we can see the packet count.
that would be one of the the feature in aaa, the accounting part. But lm not sure if you can narrow it specifically to routing table.
i have another idea , maybe just marking the routes in the routing table per destination basis by some extended acl ( and inject it in a route-map without any set command ,and integrate it to you interface) (just mark->match->count) then you can see how many packets have been matched and how many bytes they are by some basic show command..(eg.show route-map XYZ)
You can do some really cool things with netflow export and a good collector. This, however, does not tie it to a routing table entry, but you can filter down to destination subnets.