2005

8.3

1993

5.6

5.7

2015

6.4

1964

7.4

2021

6.2

1952

7.0

1989

7.3

5.0

2001

5.9

2015

7.6

1975

4.5

1952

7.1

2014

7.0

2001

6.9

1993

6.9

1965

6.6

2021

7.7

1941

7.3