This excerpt taken from the PBI 10-K filed Mar 13, 2006.
Maintenance of Accounts. A Deferral Account and a Gain Share Account, shall be separately maintained for each Participant in accordance with their Participation Agreements and Stock Option Gain Agreements. A Participants interest in his/her Account, and all Sub-Accounts, shall be comprised of the deemed investments in the deemed investment funds offered under the Plan (including the Phantom Share Fund); provided, however, the Gain Share Account shall only reflect the Participants interest in the Phantom Share Fund. A Participants Account or Sub-Account shall be utilized solely as a device for the measurement and determination of the amounts to be paid to the Participant pursuant to this Plan, and shall not constitute or be treated as a trust fund of any kind. Accounts and Sub-Accounts shall be valued daily and balances shall be available on the Participant web site and in quarterly statements sent to Participants. For purposes of distributions, the Administrative Committee shall determine the balance of each Account, and Sub-Account, as of each Valuation Date.