Modifying PowerCLI script for Get-Stat2 ?

Hi All,

I wonder if anyone here can assist me in using the script created by LucD  http://www.lucd.info/download/Get-Stat2.ps1 to get the VM statistics:

Get-VM | Where {$_.PowerState -eq "PoweredOn"} | Select Name, Host, NumCpu, MemoryMB, `
@{N="CPU Usage (Average), Mhz" ; E={[Math]::Round((($_ | Get-Stat -Stat cpu.usagemhz.average -Start (Get-Date).AddDays(-30) -IntervalMins 5 | Measure-Object Value -Average).Average),2)}}, `
@{N="Memory Usage (Average), %" ; E={[Math]::Round((($_ | Get-Stat -Stat mem.usage.average -Start (Get-Date).AddDays(-30) -IntervalMins 5 | Measure-Object Value -Average).Average),2)}} , `
@{N="Network Usage (Average), KBps" ; E={[Math]::Round((($_ | Get-Stat -Stat net.usage.average -Start (Get-Date).AddDays(-30) -IntervalMins 5 | Measure-Object Value -Average).Average),2)}} , `
@{N="Disk Usage (Average), KBps" ; E={[Math]::Round((($_ | Get-Stat -Stat disk.usage.average -Start (Get-Date).AddDays(-30) -IntervalMins 5 | Measure-Object Value -Average).Average),2)}} |
Export-Csv -Path C:\TEMP\AverageUsage.csv -NoTypeInformation

The above script does not show anything even after I raised the Statistics to level 3 in the morning. Like this one:

Thanks in advance,