In: Finance
| 
 Year  | 
 Microsoft (%)  | 
 Market Portfolio (%)  | 
| 
 1989  | 
 80.95  | 
 31.49  | 
| 
 1990  | 
 -47.37  | 
 -3.17  | 
| 
 1991  | 
 31  | 
 30.57  | 
| 
 1992  | 
 132.44  | 
 7.58  | 
| 
 1993  | 
 32.02  | 
 10.36  | 
| 
 1994  | 
 25.37  | 
 2.55  | 
| 
 1995  | 
 -28.57  | 
 37.57  | 
| 
 1996  | 
 0.00  | 
 22.68  | 
| 
 1997  | 
 11.67  | 
 33.10  | 
| 
 1998  | 
 36.19  | 
 28.32  |