EXHIBIT 11 STATEMENT RE COMPUTATION OF PER SHARE EARNINGS (in thousands except per share data) A. Weighted average shares outstanding basis: Fiscal year ended May 31 ------------------------------------- 1996 1995 1994 ------- ------- --------- Net income $75,183 $62,743 $52,170 ======= ======= ======= Weighted average shares outstanding 47,099 46,891 46,706 ====== ======= ====== Earnings per share $1.596 $1.338 $1.117 ====== ====== ====== B. Primary basis: Fiscal year ended May 31 ------------------------------------- 1996 1995 1994 ------- ------- --------- Net income $75,183 $62,743 $52,170 ======= ======= ======= Weighted average shares outstanding 47,099 46,891 46,706 Plus - net shares to be issued upon exercise of dilutive stock options after applying treasury stock method 752 773 778 --------- --------- -------- 47,851 47,664 47,484 ========= ======== ======== Earnings per share $1.571 $1.316 $1.099 ========= ======== ======== C. Fully diluted basis: Fiscal year ended May 31 ------------------------------------- 1996 1995 1994 ------- ------- --------- Net income $75,183 $62,743 $52,170 ======= ======= ======= Weighted average shares outstanding 47,099 46,891 46,706 Plus - net shares to be issued upon exercise of dilutive stock options after applying treasury stock method 905 859 838 -------- -------- -------- 48,004 47,750 47,544 ======== ======== ======== Earnings per share $1.566 $1.314 $1.097 ======== ======== ======== Note: Reported earnings per share for each year was based upon weighted average shares outstanding since neither the primary nor fully diluted amounts of per share earnings resulted in a reduction of 3% or more.