our last eight fiscal quarters. We believe that all necessary adjustments, which consisted only of normal recurring adjustments, have been included in the amounts stated below to present fairly the results of such periods when read in conjunction with the consolidated financial statements and related notes included elsewhere in this Annual Report. The sum of the quarterly financial information may vary from the annual data due to rounding.

Stock Options and Restricted Stock-Based Awards

Our stock-based compensation program is a key component of the compensation package we provide to attract and retain certain of our talented employees and align their interests with the interests of existing stockholders. We historically have granted only stock options to our employees. The restricted stock-based awards included in the table presented below were assumed as a result of acquisitions.

We recognize that options and restricted stock-based awards dilute existing stockholders and have sought to control the number of options and restricted stock-based awards granted while providing competitive compensation packages. Consistent with these dual goals, our cumulative potential dilution since June 1, 2007 has been a weighted average annualized rate of 1.3% per year. The potential dilution percentage is calculated as the average annualized new options or restricted stock-based awards granted and assumed, net of options and restricted stock-based awards forfeited by employees leaving the company, divided by the weighted average outstanding shares during the calculation period. This maximum potential dilution will only result if all options are exercised and restricted stock-based awards vest. Some of the outstanding options, which generally have a 10 year exercise period, have exercise prices higher than the current market price of our common stock. At May 31, 2010, 7% of our outstanding stock options had exercise prices in excess of the current market price. Consistent with our historical practices, we do not expect that dilution from future grants before the effect of our stock repurchase program will exceed 2.0% per year for our ongoing business. In recent years, our stock repurchase program has more than offset the dilutive effect of our stock-based compensation program; however, we may reduce the level of our stock repurchases in the future as we may use our available cash for acquisitions, to pay dividends, to repay or repurchase indebtedness or for other purposes. At May 31, 2010, the maximum potential dilution from all outstanding and unexercised stock option and restricted stock-based awards, regardless of when granted and regardless of whether vested or unvested and including options where the strike price is higher than the current market price, was 7.1%.

The Compensation Committee of the Board of Directors reviews and approves the organization-wide stock option grants to selected employees, all stock option grants to executive officers and any individual stock option grants in excess of 100,000 shares. A separate Plan Committee, which is an executive officer committee, approves individual stock option grants of up to 100,000 shares to