Table 2 Rating system for preferences (Saaty 2008)

9

Row is extremely significant

8

Row is very highly to extremely significant

7

Row is very highly significant

6

Row is highly to very highly significant

5

Row is highly significant

4

Row is moderately to strongly more significant

3

Row is moderately more significant

2

Row is equally to moderately more significant

1

Row and Column are of equal significance

1/2

Column is equally to moderately more significant

1/3

Column is moderately more significant

1/4

Column is moderately to strongly more significant

1/5

Column is highly significant

1/6

Column is highly to very highly significant

1/7

Column is very highly significant

1/8

Column is very highly to extremely significant

1/9

Column is extremely significant