MAKE A THREE YEARLY AND FIVE YEARLY MOVING AVERAGE FORECAST BASED ON THE FOLLWOING DATA: YEAR 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 SALES (000) 52 59 55 53 74 65 65 72 80 45 58 70 59 66 63 75 82 89 56 74 89 77 99