Metrics with livestatus

Hi there. Yes, ok. It was just in case.
No secrets. Ok.

So… to business.

OMD[prod2]:~/var/check_mk/rrd/ESX1$ ls | grep -i cpu
CPU_utilization.info
CPU_utilization.rrd

Query:
GET services
Filter: host_name = ESX1
Filter: service_description = CPU utilization
Columns: rrddata:m1:CPU_utilization.max,1,*:$(date +%s -d"a month ago"):$(date +%s):1"

I get: 0,0,0

What am i doing wrong?