This excerpt taken from the PBG DEF 14A filed Mar 31, 2006.
CONFIDENTIALITY OF PROXIES
PBGs policy is that proxies identifying individual shareholders are private except as necessary to determine compliance with law, or assert or defend legal claims, or in a contested proxy
solicitation, or in the event that a shareholder makes a written comment on a proxy card or an attachment to it. PBG retains an independent organization to tabulate shareholder votes and certify voting results.