#1 Restricted Stock Unit award that vests over three years, with 33.33 percent of the grant vesting based on continued service through the first anniversary of the grant date, 16.67 percent of the grant vesting based on continued service through the second anniversary of the grant date, and 50 percent of the grant vesting in the event certain performance goals are achieved and there is continuous service through the third anniversary of the grant date. For the portion of the Restricted Stock Unit award that vests based on performance, the number of shares to be issued may vary between fifty percent and two hundred percent of the target number of Restricted Stock Units depending on relative performance, and no such shares will be issued if threshold performance is not achieved. The number of shares shown in the table assumes the performance-based portion of the Restricted Stock Unit award vests at one hundred percent.