1954

8.5

1964

7.1

2001

6.4

1997

6.0

1968

6.9

1966

6.3

2000

6.5

2022

6.2

1965

6.7

2000

7.3

2003

5.0

1985

5.3

1999

6.3

2002

6.0

1951

7.5

2015

6.3

2017

6.7

1990

7.4

1954

7.6

1955

6.0