This is a copy and paste from my Fidelity 401K account under the heading of Average Annual Total Returns(%) as of 9/30/2011. Yeaaaaaaaaaaaah
1 Year -0.35 -0.12
3 Year 6.07 4.45
5 Year 3.24 2.08
10 Year 6.30 N/A
I don't think that's too stellar personally.