1999 1998 5
1998 1. 2. 3. 4. AHP 1999 2001 1997 6
1. 2. 3. 4. 2001 20 1996 7
1999 1 2000 23% 2001 1 88 9 3 8
9
10
2 36 27 2 7 11
12
91 6 17 9 4 10 2 focus group 13
1980 14
2-1 15
2-1 1. 2. 1. 2. 1. 2. 3. 1. 2. 1. 2. 3. 16
17