How can I specify the column ordering when exporting to CSV in PowerShell?

I'm writing a script in PowerShell that exports all security groups and their members from Active Directory. Now I want to format the output of the CSV file.

The code:

$Groups = Get-ADGroup -Properties * -Filter * -SearchBase "OU=SERVICES,DC=XXXXXX,DC=XXXXX" 

$Table = @()

$Record = @{
    "Group Name" = ""
    "Name" = ""
    "Username" = ""
}

Foreach($G In $Groups)
{
    $Arrayofmembers = Get-ADGroupMember -identity $G -recursive | select name,samaccountname
    Foreach ($Member in $Arrayofmembers) 
    {
        $Record."Group Name" = $G.Name
        $Record."Name" = $Member.name
        $Record."UserName" = $Member.samaccountname
        $objRecord = New-Object PSObject -property $Record
        $Table += $objrecord
    }
}

$Table | export-csv "C:\temp\SecurityGroups.csv" -NoTypeInformation

The result:

"Username","Name","Group Name"
"aman","Ani Manoukian","Commercial"
"adan","Aurelia Danneels","Commercial"
"kdeb","Kathleen De Backer","Commercial"
"TVGR","Thijs Van Grimbergen","Commercial"
"SVDE","Sofie Van den Eynde","Commercial"

Now I want the output formatted in this order:

"Group Name","Name","Username"

Instead of: "Username","Name","Group Name"

This should work...

$Table |
  Select-Object "Group Name", "Name", "Username" |
  Export-Csv "C:\temp\SecurityGroups.csv" -NoTypeInformation