TorStatus frontpage graph makes me think the network is dead

I've attached the graphic I'm seeing on the front page of http://www.torstatusbeta.org/

The left-hand column has "bandwidth" ranging from 0MB to 2000MB. There's a line that goes from 2000MB down to 0MB over the course of the graph.

Then there's a legend that shows one line is "observed bandwidth", and another identical line is "average active relays".

Maybe if my browser had higher resolution I would discover that one of the lines is green and the other is not-quite-green. But I don't think you can squash two graphs into one graph like this and still have it be readable.