Log in to your account and click on the Retirement plan value tab on your Dashboard.
This page will show you how much is currently in your retirement fund, and how much both you and your employer have contributed since you joined the Plan. Only the contributions that have already been invested will be included in this valuation. Additional Voluntary Contributions and transfers in will also show in this section.
Contribution History
Towards the bottom of the page you will find a history of contributions made to your retirement fund.