Here is a list of impact risk for the next 100 years.
http://neo.jpl.nasa.gov/risk/
On the "Torino Scale" there is one in 2102 and it's at "1".
99.99840000% chance the asteroid will miss the Earth
1 :
A routine discovery in which a pass near the Earth is predicted that poses no unusual level of danger. Current calculations show the chance of collision is extremely unlikely with no cause for public attention or public concern. New telescopic observations very likely will lead to re-assignment to Level 0.
