I just realized that I've had last.fm for a year, and though it's a few days past, here's roughly my top 15 of my first year on last.fm:
1 Hüsker Dü 157
2 My Bloody Valentine 154
3 Slowdive 117
4 Ride 69
4 Mission of Burma 69
6 Love 67
7 Chelsea Wolfe 64
8 David Bowie 55
9 Talking Heads 54
10 Black Tambourine 48
11 Pere Ubu 44
12 Minutemen 43
13 Nico 38
13 Pixies 38
13 Can 38
And Overcast, evidently you listen to more stuff in a week than I do in an entire year.