InfluxDB 1.8 and VMWare Top 10

I’m trying to select the top 10 VMs by highest memory average. I would like to have these in a bar graph with represented value. My problem is, whenever I do a SELECT I get the same hosts and the same memory value:

select guesthostname, top(usage_average, 10) from vsphere_vm_mem

What am I missing?

check out the doc