EXHIBIT 11 - COMPUTATION OF NET EARNINGS PER SHARE Year ended December 31, 1995 1994 1993 PRIMARY: Primary net earnings.......................... $274,534,505 $226,632,844 $123,509,607 Average shares outstanding: (excludes dilutive effect of employee stock options because less than 3%)......... 87,430,370 87,166,164 86,909,345 Primary net earnings per share................ $3.1400 $2.6000 $1.4211 FULLY DILUTED: Fully diluted net earnings................... $274,534,505 $226,632,844 $123,509,607 Fully diluted average shares outstanding: Primary shares outstanding................. 87,430,370 87,166,164 86,909,345 Dilutive effect of employee stock options.. 182,523 330,650 385,365 87,612,893 87,496,814 87,294,710 Fully diluted net earnings per share......... $3.1335 $2.5902 $1.4149