20.5

22.6

23.4

3.4

3.9

4.0

4.1

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.1

5.4

5.5

5.6

5.8

6.1

6.2

6.3

6.4

6.5

6.6

7

7.1

7.4

7.5

7.6

7.8

7.9

8.3

8.4

8.6

9.1

9.5

9.7

9.8