Exchange 2007 - Get-LogonStatistics need to get primarysmtpaddress

I need to pull in primarysmtpaddress to Get-LogonStatistics.  Here's what I have so far:

Get-Mailbox -ResultSize unlimited | Get-LogonStatistics | Select UserName,ClientVersion,LastAccessTime,ServerName  | Export-Csv "C:\outlook_version.csv" -NoTypeInformation

Any help would be greatly appreciated.