1993

6.2

2009

6.6

2003

7.1

0.0

1986

3.5

1998

7.1

1979

5.1

2025

0.0

2005

7.1

1999

6.5

1981

7.3

1968

7.8

1954

6.4

1976

5.8

1962

6.7

1956

4.1

2016

6.3

2021

6.6

1963

6.6

2002

6.7