1990

6.5

1954

7.1

1992

5.9

1968

7.0

2005

7.2

1955

7.2

2008

6.7

1976

7.3

1967

5.0

1970

0.0

1996

3.4

1999

6.0

2017

10.0

1986

6.0

1955

7.0

1999

5.7

1982

6.7

2014

6.4

1991

8.3

2003

6.5