1. YEAR XXX COMPANY YYY COMPANY
31-Dec-90 75 129.6
31-Dec-91 86.25 110
31-Dec-92 112.6 160.4
31-Dec-93 85 89.6
31-Dec-94 34.5 45
31-Dec-95 66.9 78
31-Dec-96 78 98.7
31-Dec-97 122.7 108.7
SHARE RETURN
XXX COMPANY YYY COMPANY
31-Dec-90 75 129.6
31-Dec-91 86.25 15.00% 110 -15.12%
31-Dec-92 112.6 30.55% 160.4 45.82%
31-Dec-93 85 -24.51% 89.6 -44.14%
31-Dec-94 34.5 -59.41% 45 -49.78%
31-Dec-95 66.9 93.91% 78 73.33%
31-Dec-96 78 16.59% 98.7 26.54%
31-Dec-97 122.7 57.31% 108.7 10.13%
MEAN 18.49% 6.68%
Varinace 0.22 0.18
STD DEV 0.47 0.42