1970

6.1

1982

1.0

1960

4.8

1963

6.8

1997

6.1

1994

7.0

1993

7.5

1987

7.3

2009

7.2

2009

6.2

1962

4.0

1975

6.0

2009

6.0

2014

5.3

2006

6.6

1979

5.1

2023

0.0

1979

7.3

2007

6.7

1967

7.3