Cpu load metric relation with top command

I usually use top command to monitor the Cpu load on my server machine. I don't understand the related value in Anturis.

With Top command I have 3 value. The load average in the last 1 min, 5 min and 15 min

With Anturis I have only one value. Furthermore the warning and error threshold is in percent. I don't understand how to map these value for an effective alert notification.

Thanks.

Emilio